Home / 656,140.20-983,432.70-340,434.60

Finding the Fourth Proportional to 656,140.20, 983,432.70 and 340,434.60

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Solution

The fourth proportional to 656,140.20, 983,432.70 and 340,434.60 is: 510,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,140.20 : 983,432.70 = 340,434.60 : x
  2. Step 2: Convert to fraction form
    656,140.20/983,432.70 = 340,434.60/x
  3. Step 3: Cross multiply
    656,140.20x = 983,432.70 × 340,434.60
  4. Step 4: Simplify right side
    656,140.20x = 334,794,517,851.42
  5. Step 5: Solve for x
    x = 334,794,517,851.42/656,140.20
  6. Step 6: Final answer
    x = 510,248.45

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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.