Home / 711,985.20-1,069,014.60-432,049.20

Finding the Fourth Proportional to 711,985.20, 1,069,014.60 and 432,049.20

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Solution

The fourth proportional to 711,985.20, 1,069,014.60 and 432,049.20 is: 648,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,985.20 : 1,069,014.60 = 432,049.20 : x
  2. Step 2: Convert to fraction form
    711,985.20/1,069,014.60 = 432,049.20/x
  3. Step 3: Cross multiply
    711,985.20x = 1,069,014.60 × 432,049.20
  4. Step 4: Simplify right side
    711,985.20x = 461,866,902,718.32
  5. Step 5: Solve for x
    x = 461,866,902,718.32/711,985.20
  6. Step 6: Final answer
    x = 648,702.95

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1.5x scale

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.