Home / 972,015.40-1,458,023.10-771,248.80

Finding the Fourth Proportional to 972,015.40, 1,458,023.10 and 771,248.80

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Solution

The fourth proportional to 972,015.40, 1,458,023.10 and 771,248.80 is: 1,156,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,015.40 : 1,458,023.10 = 771,248.80 : x
  2. Step 2: Convert to fraction form
    972,015.40/1,458,023.10 = 771,248.80/x
  3. Step 3: Cross multiply
    972,015.40x = 1,458,023.10 × 771,248.80
  4. Step 4: Simplify right side
    972,015.40x = 1,124,498,566,247.28
  5. Step 5: Solve for x
    x = 1,124,498,566,247.28/972,015.40
  6. Step 6: Final answer
    x = 1,156,873.20

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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.