Home / 648,030.30-972,045.45-363,428.70

Finding the Fourth Proportional to 648,030.30, 972,045.45 and 363,428.70

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Solution

The fourth proportional to 648,030.30, 972,045.45 and 363,428.70 is: 545,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,030.30 : 972,045.45 = 363,428.70 : x
  2. Step 2: Convert to fraction form
    648,030.30/972,045.45 = 363,428.70/x
  3. Step 3: Cross multiply
    648,030.30x = 972,045.45 × 363,428.70
  4. Step 4: Simplify right side
    648,030.30x = 353,269,214,234.42
  5. Step 5: Solve for x
    x = 353,269,214,234.42/648,030.30
  6. Step 6: Final answer
    x = 545,143.05

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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.