Home / 1,119,909.70-1,679,864.55-665,232.40

Finding the Fourth Proportional to 1,119,909.70, 1,679,864.55 and 665,232.40

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Solution

The fourth proportional to 1,119,909.70, 1,679,864.55 and 665,232.40 is: 997,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,909.70 : 1,679,864.55 = 665,232.40 : x
  2. Step 2: Convert to fraction form
    1,119,909.70/1,679,864.55 = 665,232.40/x
  3. Step 3: Cross multiply
    1,119,909.70x = 1,679,864.55 × 665,232.40
  4. Step 4: Simplify right side
    1,119,909.70x = 1,117,500,326,271.42
  5. Step 5: Solve for x
    x = 1,117,500,326,271.42/1,119,909.70
  6. Step 6: Final answer
    x = 997,848.60

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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.