Home / 986,054.50-1,478,085.27-386,780.95

Finding the Fourth Proportional to 986,054.50, 1,478,085.27 and 386,780.95

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Solution

The fourth proportional to 986,054.50, 1,478,085.27 and 386,780.95 is: 579,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,054.50 : 1,478,085.27 = 386,780.95 : x
  2. Step 2: Convert to fraction form
    986,054.50/1,478,085.27 = 386,780.95/x
  3. Step 3: Cross multiply
    986,054.50x = 1,478,085.27 × 386,780.95
  4. Step 4: Simplify right side
    986,054.50x = 571,695,224,911.61
  5. Step 5: Solve for x
    x = 571,695,224,911.61/986,054.50
  6. Step 6: Final answer
    x = 579,780.55

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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.