Home / 690,678.90-1,036,018.35-504,054.90

Finding the Fourth Proportional to 690,678.90, 1,036,018.35 and 504,054.90

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Solution

The fourth proportional to 690,678.90, 1,036,018.35 and 504,054.90 is: 756,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,678.90 : 1,036,018.35 = 504,054.90 : x
  2. Step 2: Convert to fraction form
    690,678.90/1,036,018.35 = 504,054.90/x
  3. Step 3: Cross multiply
    690,678.90x = 1,036,018.35 × 504,054.90
  4. Step 4: Simplify right side
    690,678.90x = 522,210,125,807.42
  5. Step 5: Solve for x
    x = 522,210,125,807.42/690,678.90
  6. Step 6: Final answer
    x = 756,082.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.