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Finding the Fourth Proportional to 599,543.40, 899,315.10 and 319,607.40

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Solution

The fourth proportional to 599,543.40, 899,315.10 and 319,607.40 is: 479,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,543.40 : 899,315.10 = 319,607.40 : x
  2. Step 2: Convert to fraction form
    599,543.40/899,315.10 = 319,607.40/x
  3. Step 3: Cross multiply
    599,543.40x = 899,315.10 × 319,607.40
  4. Step 4: Simplify right side
    599,543.40x = 287,427,760,891.74
  5. Step 5: Solve for x
    x = 287,427,760,891.74/599,543.40
  6. Step 6: Final answer
    x = 479,411.10

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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.