Home / 989,112.92-1,365,033.38-553,526.58

Finding the Fourth Proportional to 989,112.92, 1,365,033.38 and 553,526.58

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Solution

The fourth proportional to 989,112.92, 1,365,033.38 and 553,526.58 is: 763,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,112.92 : 1,365,033.38 = 553,526.58 : x
  2. Step 2: Convert to fraction form
    989,112.92/1,365,033.38 = 553,526.58/x
  3. Step 3: Cross multiply
    989,112.92x = 1,365,033.38 × 553,526.58
  4. Step 4: Simplify right side
    989,112.92x = 755,582,255,649.61
  5. Step 5: Solve for x
    x = 755,582,255,649.61/989,112.92
  6. Step 6: Final answer
    x = 763,898.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.