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Finding the Fourth Proportional to 615,215.20, 922,822.80 and 606,920.80

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Solution

The fourth proportional to 615,215.20, 922,822.80 and 606,920.80 is: 910,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,215.20 : 922,822.80 = 606,920.80 : x
  2. Step 2: Convert to fraction form
    615,215.20/922,822.80 = 606,920.80/x
  3. Step 3: Cross multiply
    615,215.20x = 922,822.80 × 606,920.80
  4. Step 4: Simplify right side
    615,215.20x = 560,080,352,034.24
  5. Step 5: Solve for x
    x = 560,080,352,034.24/615,215.20
  6. Step 6: Final answer
    x = 910,381.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.