Home / 896,299.20-1,344,686.40-390,643.20

Finding the Fourth Proportional to 896,299.20, 1,344,686.40 and 390,643.20

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Solution

The fourth proportional to 896,299.20, 1,344,686.40 and 390,643.20 is: 586,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,299.20 : 1,344,686.40 = 390,643.20 : x
  2. Step 2: Convert to fraction form
    896,299.20/1,344,686.40 = 390,643.20/x
  3. Step 3: Cross multiply
    896,299.20x = 1,344,686.40 × 390,643.20
  4. Step 4: Simplify right side
    896,299.20x = 525,292,598,292.48
  5. Step 5: Solve for x
    x = 525,292,598,292.48/896,299.20
  6. Step 6: Final answer
    x = 586,068.36

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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.