Home / 676,056.25-932,684.38-389,422.81

Finding the Fourth Proportional to 676,056.25, 932,684.38 and 389,422.81

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Solution

The fourth proportional to 676,056.25, 932,684.38 and 389,422.81 is: 537,246.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,056.25 : 932,684.38 = 389,422.81 : x
  2. Step 2: Convert to fraction form
    676,056.25/932,684.38 = 389,422.81/x
  3. Step 3: Cross multiply
    676,056.25x = 932,684.38 × 389,422.81
  4. Step 4: Simplify right side
    676,056.25x = 363,208,572,102.71
  5. Step 5: Solve for x
    x = 363,208,572,102.71/676,056.25
  6. Step 6: Final answer
    x = 537,246.08

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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.