Home / 763,029.20-1,144,543.80-586,427.60

Finding the Fourth Proportional to 763,029.20, 1,144,543.80 and 586,427.60

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Solution

The fourth proportional to 763,029.20, 1,144,543.80 and 586,427.60 is: 879,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,029.20 : 1,144,543.80 = 586,427.60 : x
  2. Step 2: Convert to fraction form
    763,029.20/1,144,543.80 = 586,427.60/x
  3. Step 3: Cross multiply
    763,029.20x = 1,144,543.80 × 586,427.60
  4. Step 4: Simplify right side
    763,029.20x = 671,192,073,728.88
  5. Step 5: Solve for x
    x = 671,192,073,728.88/763,029.20
  6. Step 6: Final answer
    x = 879,641.40

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Double scale
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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.