Home / 558,427.80-837,641.70-402,130.20

Finding the Fourth Proportional to 558,427.80, 837,641.70 and 402,130.20

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Solution

The fourth proportional to 558,427.80, 837,641.70 and 402,130.20 is: 603,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,427.80 : 837,641.70 = 402,130.20 : x
  2. Step 2: Convert to fraction form
    558,427.80/837,641.70 = 402,130.20/x
  3. Step 3: Cross multiply
    558,427.80x = 837,641.70 × 402,130.20
  4. Step 4: Simplify right side
    558,427.80x = 336,841,024,349.34
  5. Step 5: Solve for x
    x = 336,841,024,349.34/558,427.80
  6. Step 6: Final answer
    x = 603,195.30

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Double scale
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Similar ratio
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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.