Home / 989,030.50-1,364,862.09-536,321.86

Finding the Fourth Proportional to 989,030.50, 1,364,862.09 and 536,321.86

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Solution

The fourth proportional to 989,030.50, 1,364,862.09 and 536,321.86 is: 740,124.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,030.50 : 1,364,862.09 = 536,321.86 : x
  2. Step 2: Convert to fraction form
    989,030.50/1,364,862.09 = 536,321.86/x
  3. Step 3: Cross multiply
    989,030.50x = 1,364,862.09 × 536,321.86
  4. Step 4: Simplify right side
    989,030.50x = 732,005,374,752.29
  5. Step 5: Solve for x
    x = 732,005,374,752.29/989,030.50
  6. Step 6: Final answer
    x = 740,124.17

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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.