Home / 712,167.32-982,814.10-389,877.32

Finding the Fourth Proportional to 712,167.32, 982,814.10 and 389,877.32

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Solution

The fourth proportional to 712,167.32, 982,814.10 and 389,877.32 is: 538,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,167.32 : 982,814.10 = 389,877.32 : x
  2. Step 2: Convert to fraction form
    712,167.32/982,814.10 = 389,877.32/x
  3. Step 3: Cross multiply
    712,167.32x = 982,814.10 × 389,877.32
  4. Step 4: Simplify right side
    712,167.32x = 383,176,927,366.21
  5. Step 5: Solve for x
    x = 383,176,927,366.21/712,167.32
  6. Step 6: Final answer
    x = 538,043.40

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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.