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Finding the Fourth Proportional to 936,230.40, 1,402,502.40 and 869,875.20

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Solution

The fourth proportional to 936,230.40, 1,402,502.40 and 869,875.20 is: 1,303,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,230.40 : 1,402,502.40 = 869,875.20 : x
  2. Step 2: Convert to fraction form
    936,230.40/1,402,502.40 = 869,875.20/x
  3. Step 3: Cross multiply
    936,230.40x = 1,402,502.40 × 869,875.20
  4. Step 4: Simplify right side
    936,230.40x = 1,220,002,055,700.48
  5. Step 5: Solve for x
    x = 1,220,002,055,700.48/936,230.40
  6. Step 6: Final answer
    x = 1,303,100.24

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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.