Home / 865,612.40-1,194,606.92-478,419.50

Finding the Fourth Proportional to 865,612.40, 1,194,606.92 and 478,419.50

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Solution

The fourth proportional to 865,612.40, 1,194,606.92 and 478,419.50 is: 660,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,612.40 : 1,194,606.92 = 478,419.50 : x
  2. Step 2: Convert to fraction form
    865,612.40/1,194,606.92 = 478,419.50/x
  3. Step 3: Cross multiply
    865,612.40x = 1,194,606.92 × 478,419.50
  4. Step 4: Simplify right side
    865,612.40x = 571,523,249,545.51
  5. Step 5: Solve for x
    x = 571,523,249,545.51/865,612.40
  6. Step 6: Final answer
    x = 660,253.08

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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.