Home / 942,548.32-1,413,287.16-643,391.20

Finding the Fourth Proportional to 942,548.32, 1,413,287.16 and 643,391.20

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Solution

The fourth proportional to 942,548.32, 1,413,287.16 and 643,391.20 is: 964,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,548.32 : 1,413,287.16 = 643,391.20 : x
  2. Step 2: Convert to fraction form
    942,548.32/1,413,287.16 = 643,391.20/x
  3. Step 3: Cross multiply
    942,548.32x = 1,413,287.16 × 643,391.20
  4. Step 4: Simplify right side
    942,548.32x = 909,296,521,816.99
  5. Step 5: Solve for x
    x = 909,296,521,816.99/942,548.32
  6. Step 6: Final answer
    x = 964,721.39

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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.