Home / 990,385.72-1,486,130.55-534,967.78

Finding the Fourth Proportional to 990,385.72, 1,486,130.55 and 534,967.78

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Solution

The fourth proportional to 990,385.72, 1,486,130.55 and 534,967.78 is: 802,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,385.72 : 1,486,130.55 = 534,967.78 : x
  2. Step 2: Convert to fraction form
    990,385.72/1,486,130.55 = 534,967.78/x
  3. Step 3: Cross multiply
    990,385.72x = 1,486,130.55 × 534,967.78
  4. Step 4: Simplify right side
    990,385.72x = 795,031,961,123.68
  5. Step 5: Solve for x
    x = 795,031,961,123.68/990,385.72
  6. Step 6: Final answer
    x = 802,749.82

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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.