Home / 972,421.58-1,342,009.14-542,785.44

Finding the Fourth Proportional to 972,421.58, 1,342,009.14 and 542,785.44

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Solution

The fourth proportional to 972,421.58, 1,342,009.14 and 542,785.44 is: 749,081.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,421.58 : 1,342,009.14 = 542,785.44 : x
  2. Step 2: Convert to fraction form
    972,421.58/1,342,009.14 = 542,785.44/x
  3. Step 3: Cross multiply
    972,421.58x = 1,342,009.14 × 542,785.44
  4. Step 4: Simplify right side
    972,421.58x = 728,423,021,538.92
  5. Step 5: Solve for x
    x = 728,423,021,538.92/972,421.58
  6. Step 6: Final answer
    x = 749,081.51

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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.