Home / 972,412.64-1,341,874.86-542,720.45

Finding the Fourth Proportional to 972,412.64, 1,341,874.86 and 542,720.45

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Solution

The fourth proportional to 972,412.64, 1,341,874.86 and 542,720.45 is: 748,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,412.64 : 1,341,874.86 = 542,720.45 : x
  2. Step 2: Convert to fraction form
    972,412.64/1,341,874.86 = 542,720.45/x
  3. Step 3: Cross multiply
    972,412.64x = 1,341,874.86 × 542,720.45
  4. Step 4: Simplify right side
    972,412.64x = 728,262,929,182.37
  5. Step 5: Solve for x
    x = 728,262,929,182.37/972,412.64
  6. Step 6: Final answer
    x = 748,923.76

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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.