Home / 872,157.60-1,307,458.80-516,794.40

Finding the Fourth Proportional to 872,157.60, 1,307,458.80 and 516,794.40

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Solution

The fourth proportional to 872,157.60, 1,307,458.80 and 516,794.40 is: 774,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,157.60 : 1,307,458.80 = 516,794.40 : x
  2. Step 2: Convert to fraction form
    872,157.60/1,307,458.80 = 516,794.40/x
  3. Step 3: Cross multiply
    872,157.60x = 1,307,458.80 × 516,794.40
  4. Step 4: Simplify right side
    872,157.60x = 675,687,386,070.72
  5. Step 5: Solve for x
    x = 675,687,386,070.72/872,157.60
  6. Step 6: Final answer
    x = 774,730.84

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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.