Home / 712,425.32-983,139.94-385,736.74

Finding the Fourth Proportional to 712,425.32, 983,139.94 and 385,736.74

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Solution

The fourth proportional to 712,425.32, 983,139.94 and 385,736.74 is: 532,312.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,425.32 : 983,139.94 = 385,736.74 : x
  2. Step 2: Convert to fraction form
    712,425.32/983,139.94 = 385,736.74/x
  3. Step 3: Cross multiply
    712,425.32x = 983,139.94 × 385,736.74
  4. Step 4: Simplify right side
    712,425.32x = 379,233,195,419.40
  5. Step 5: Solve for x
    x = 379,233,195,419.40/712,425.32
  6. Step 6: Final answer
    x = 532,312.91

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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.