Home / 990,472.32-1,486,429.92-359,436.96

Finding the Fourth Proportional to 990,472.32, 1,486,429.92 and 359,436.96

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Solution

The fourth proportional to 990,472.32, 1,486,429.92 and 359,436.96 is: 539,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,472.32 : 1,486,429.92 = 359,436.96 : x
  2. Step 2: Convert to fraction form
    990,472.32/1,486,429.92 = 359,436.96/x
  3. Step 3: Cross multiply
    990,472.32x = 1,486,429.92 × 359,436.96
  4. Step 4: Simplify right side
    990,472.32x = 534,277,851,697.84
  5. Step 5: Solve for x
    x = 534,277,851,697.84/990,472.32
  6. Step 6: Final answer
    x = 539,417.25

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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.