Home / 975,646.91-1,463,470.37-643,145.15

Finding the Fourth Proportional to 975,646.91, 1,463,470.37 and 643,145.15

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Solution

The fourth proportional to 975,646.91, 1,463,470.37 and 643,145.15 is: 964,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,646.91 : 1,463,470.37 = 643,145.15 : x
  2. Step 2: Convert to fraction form
    975,646.91/1,463,470.37 = 643,145.15/x
  3. Step 3: Cross multiply
    975,646.91x = 1,463,470.37 × 643,145.15
  4. Step 4: Simplify right side
    975,646.91x = 941,223,860,101.13
  5. Step 5: Solve for x
    x = 941,223,860,101.13/975,646.91
  6. Step 6: Final answer
    x = 964,717.72

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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.