Home / 887,223.80-1,328,502.90-649,278.20

Finding the Fourth Proportional to 887,223.80, 1,328,502.90 and 649,278.20

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Solution

The fourth proportional to 887,223.80, 1,328,502.90 and 649,278.20 is: 972,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,223.80 : 1,328,502.90 = 649,278.20 : x
  2. Step 2: Convert to fraction form
    887,223.80/1,328,502.90 = 649,278.20/x
  3. Step 3: Cross multiply
    887,223.80x = 1,328,502.90 × 649,278.20
  4. Step 4: Simplify right side
    887,223.80x = 862,567,971,606.78
  5. Step 5: Solve for x
    x = 862,567,971,606.78/887,223.80
  6. Step 6: Final answer
    x = 972,210.14

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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.