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Finding the Fourth Proportional to 575,404.20, 863,106.30 and 456,431.40

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Solution

The fourth proportional to 575,404.20, 863,106.30 and 456,431.40 is: 684,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,404.20 : 863,106.30 = 456,431.40 : x
  2. Step 2: Convert to fraction form
    575,404.20/863,106.30 = 456,431.40/x
  3. Step 3: Cross multiply
    575,404.20x = 863,106.30 × 456,431.40
  4. Step 4: Simplify right side
    575,404.20x = 393,948,816,857.82
  5. Step 5: Solve for x
    x = 393,948,816,857.82/575,404.20
  6. Step 6: Final answer
    x = 684,647.10

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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.