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Finding the Fourth Proportional to 575,073.16, 793,614.18 and 320,439.88

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Solution

The fourth proportional to 575,073.16, 793,614.18 and 320,439.88 is: 442,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,073.16 : 793,614.18 = 320,439.88 : x
  2. Step 2: Convert to fraction form
    575,073.16/793,614.18 = 320,439.88/x
  3. Step 3: Cross multiply
    575,073.16x = 793,614.18 × 320,439.88
  4. Step 4: Simplify right side
    575,073.16x = 254,305,632,605.50
  5. Step 5: Solve for x
    x = 254,305,632,605.50/575,073.16
  6. Step 6: Final answer
    x = 442,214.40

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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.