Home / 900,322.14-1,242,306.51-518,275.08

Finding the Fourth Proportional to 900,322.14, 1,242,306.51 and 518,275.08

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Solution

The fourth proportional to 900,322.14, 1,242,306.51 and 518,275.08 is: 715,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,322.14 : 1,242,306.51 = 518,275.08 : x
  2. Step 2: Convert to fraction form
    900,322.14/1,242,306.51 = 518,275.08/x
  3. Step 3: Cross multiply
    900,322.14x = 1,242,306.51 × 518,275.08
  4. Step 4: Simplify right side
    900,322.14x = 643,856,505,854.77
  5. Step 5: Solve for x
    x = 643,856,505,854.77/900,322.14
  6. Step 6: Final answer
    x = 715,140.15

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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.