Home / 385,023.40-577,535.10-291,711.40

Finding the Fourth Proportional to 385,023.40, 577,535.10 and 291,711.40

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Solution

The fourth proportional to 385,023.40, 577,535.10 and 291,711.40 is: 437,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,023.40 : 577,535.10 = 291,711.40 : x
  2. Step 2: Convert to fraction form
    385,023.40/577,535.10 = 291,711.40/x
  3. Step 3: Cross multiply
    385,023.40x = 577,535.10 × 291,711.40
  4. Step 4: Simplify right side
    385,023.40x = 168,473,572,570.14
  5. Step 5: Solve for x
    x = 168,473,572,570.14/385,023.40
  6. Step 6: Final answer
    x = 437,567.10

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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.