Home / 698,212.80-1,047,319.20-432,492.30

Finding the Fourth Proportional to 698,212.80, 1,047,319.20 and 432,492.30

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Solution

The fourth proportional to 698,212.80, 1,047,319.20 and 432,492.30 is: 648,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,212.80 : 1,047,319.20 = 432,492.30 : x
  2. Step 2: Convert to fraction form
    698,212.80/1,047,319.20 = 432,492.30/x
  3. Step 3: Cross multiply
    698,212.80x = 1,047,319.20 × 432,492.30
  4. Step 4: Simplify right side
    698,212.80x = 452,957,489,642.16
  5. Step 5: Solve for x
    x = 452,957,489,642.16/698,212.80
  6. Step 6: Final answer
    x = 648,738.45

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Similar ratio
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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.