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Finding the Fourth Proportional to 440,335.90, 607,849.62 and 297,289.72

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Solution

The fourth proportional to 440,335.90, 607,849.62 and 297,289.72 is: 410,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,335.90 : 607,849.62 = 297,289.72 : x
  2. Step 2: Convert to fraction form
    440,335.90/607,849.62 = 297,289.72/x
  3. Step 3: Cross multiply
    440,335.90x = 607,849.62 × 297,289.72
  4. Step 4: Simplify right side
    440,335.90x = 180,707,443,331.91
  5. Step 5: Solve for x
    x = 180,707,443,331.91/440,335.90
  6. Step 6: Final answer
    x = 410,385.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.