Home / 989,851.56-1,484,776.76-358,764.36

Finding the Fourth Proportional to 989,851.56, 1,484,776.76 and 358,764.36

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Solution

The fourth proportional to 989,851.56, 1,484,776.76 and 358,764.36 is: 538,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,851.56 : 1,484,776.76 = 358,764.36 : x
  2. Step 2: Convert to fraction form
    989,851.56/1,484,776.76 = 358,764.36/x
  3. Step 3: Cross multiply
    989,851.56x = 1,484,776.76 × 358,764.36
  4. Step 4: Simplify right side
    989,851.56x = 532,684,984,044.27
  5. Step 5: Solve for x
    x = 532,684,984,044.27/989,851.56
  6. Step 6: Final answer
    x = 538,146.33

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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.