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Finding the Fourth Proportional to 711,547.80, 982,228.13 and 482,418.92

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Solution

The fourth proportional to 711,547.80, 982,228.13 and 482,418.92 is: 665,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,547.80 : 982,228.13 = 482,418.92 : x
  2. Step 2: Convert to fraction form
    711,547.80/982,228.13 = 482,418.92/x
  3. Step 3: Cross multiply
    711,547.80x = 982,228.13 × 482,418.92
  4. Step 4: Simplify right side
    711,547.80x = 473,845,426,344.98
  5. Step 5: Solve for x
    x = 473,845,426,344.98/711,547.80
  6. Step 6: Final answer
    x = 665,936.18

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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.