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Finding the Fourth Proportional to 575,234.80, 862,852.20 and 435,266.80

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Solution

The fourth proportional to 575,234.80, 862,852.20 and 435,266.80 is: 652,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,234.80 : 862,852.20 = 435,266.80 : x
  2. Step 2: Convert to fraction form
    575,234.80/862,852.20 = 435,266.80/x
  3. Step 3: Cross multiply
    575,234.80x = 862,852.20 × 435,266.80
  4. Step 4: Simplify right side
    575,234.80x = 375,570,915,966.96
  5. Step 5: Solve for x
    x = 375,570,915,966.96/575,234.80
  6. Step 6: Final answer
    x = 652,900.20

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Similar ratio
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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.