Home / 690,145.31-1,035,312.28-240,800.19

Finding the Fourth Proportional to 690,145.31, 1,035,312.28 and 240,800.19

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Solution

The fourth proportional to 690,145.31, 1,035,312.28 and 240,800.19 is: 361,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,145.31 : 1,035,312.28 = 240,800.19 : x
  2. Step 2: Convert to fraction form
    690,145.31/1,035,312.28 = 240,800.19/x
  3. Step 3: Cross multiply
    690,145.31x = 1,035,312.28 × 240,800.19
  4. Step 4: Simplify right side
    690,145.31x = 249,303,396,427.04
  5. Step 5: Solve for x
    x = 249,303,396,427.04/690,145.31
  6. Step 6: Final answer
    x = 361,233.20

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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.