Home / 972,395.96-1,342,041.66-542,703.78

Finding the Fourth Proportional to 972,395.96, 1,342,041.66 and 542,703.78

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Solution

The fourth proportional to 972,395.96, 1,342,041.66 and 542,703.78 is: 749,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,395.96 : 1,342,041.66 = 542,703.78 : x
  2. Step 2: Convert to fraction form
    972,395.96/1,342,041.66 = 542,703.78/x
  3. Step 3: Cross multiply
    972,395.96x = 1,342,041.66 × 542,703.78
  4. Step 4: Simplify right side
    972,395.96x = 728,331,081,799.48
  5. Step 5: Solve for x
    x = 728,331,081,799.48/972,395.96
  6. Step 6: Final answer
    x = 749,006.70

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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.