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Finding the Fourth Proportional to 630,998.40, 944,654.40 and 564,643.20

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Solution

The fourth proportional to 630,998.40, 944,654.40 and 564,643.20 is: 845,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,998.40 : 944,654.40 = 564,643.20 : x
  2. Step 2: Convert to fraction form
    630,998.40/944,654.40 = 564,643.20/x
  3. Step 3: Cross multiply
    630,998.40x = 944,654.40 × 564,643.20
  4. Step 4: Simplify right side
    630,998.40x = 533,392,683,310.08
  5. Step 5: Solve for x
    x = 533,392,683,310.08/630,998.40
  6. Step 6: Final answer
    x = 845,315.43

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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.