Home / 820,036.32-1,131,646.98-457,459.89

Finding the Fourth Proportional to 820,036.32, 1,131,646.98 and 457,459.89

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Solution

The fourth proportional to 820,036.32, 1,131,646.98 and 457,459.89 is: 631,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,036.32 : 1,131,646.98 = 457,459.89 : x
  2. Step 2: Convert to fraction form
    820,036.32/1,131,646.98 = 457,459.89/x
  3. Step 3: Cross multiply
    820,036.32x = 1,131,646.98 × 457,459.89
  4. Step 4: Simplify right side
    820,036.32x = 517,683,102,989.63
  5. Step 5: Solve for x
    x = 517,683,102,989.63/820,036.32
  6. Step 6: Final answer
    x = 631,292.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.