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Finding the Fourth Proportional to 712,617, 983,382.66 and 426,295.32

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Solution

The fourth proportional to 712,617, 983,382.66 and 426,295.32 is: 588,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,617 : 983,382.66 = 426,295.32 : x
  2. Step 2: Convert to fraction form
    712,617/983,382.66 = 426,295.32/x
  3. Step 3: Cross multiply
    712,617x = 983,382.66 × 426,295.32
  4. Step 4: Simplify right side
    712,617x = 419,211,425,727.15
  5. Step 5: Solve for x
    x = 419,211,425,727.15/712,617
  6. Step 6: Final answer
    x = 588,270.31

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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.