Home / 656,931.60-906,565.23-355,125.60

Finding the Fourth Proportional to 656,931.60, 906,565.23 and 355,125.60

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Solution

The fourth proportional to 656,931.60, 906,565.23 and 355,125.60 is: 490,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,931.60 : 906,565.23 = 355,125.60 : x
  2. Step 2: Convert to fraction form
    656,931.60/906,565.23 = 355,125.60/x
  3. Step 3: Cross multiply
    656,931.60x = 906,565.23 × 355,125.60
  4. Step 4: Simplify right side
    656,931.60x = 321,944,521,242.89
  5. Step 5: Solve for x
    x = 321,944,521,242.89/656,931.60
  6. Step 6: Final answer
    x = 490,073.12

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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.