Home / 972,402.72-1,342,008.90-542,722.83

Finding the Fourth Proportional to 972,402.72, 1,342,008.90 and 542,722.83

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Solution

The fourth proportional to 972,402.72, 1,342,008.90 and 542,722.83 is: 749,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,402.72 : 1,342,008.90 = 542,722.83 : x
  2. Step 2: Convert to fraction form
    972,402.72/1,342,008.90 = 542,722.83/x
  3. Step 3: Cross multiply
    972,402.72x = 1,342,008.90 × 542,722.83
  4. Step 4: Simplify right side
    972,402.72x = 728,338,868,093.19
  5. Step 5: Solve for x
    x = 728,338,868,093.19/972,402.72
  6. Step 6: Final answer
    x = 749,009.49

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1.5x scale

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.