Home / 989,395.48-1,365,373.02-536,689.72

Finding the Fourth Proportional to 989,395.48, 1,365,373.02 and 536,689.72

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Solution

The fourth proportional to 989,395.48, 1,365,373.02 and 536,689.72 is: 740,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,395.48 : 1,365,373.02 = 536,689.72 : x
  2. Step 2: Convert to fraction form
    989,395.48/1,365,373.02 = 536,689.72/x
  3. Step 3: Cross multiply
    989,395.48x = 1,365,373.02 × 536,689.72
  4. Step 4: Simplify right side
    989,395.48x = 732,781,663,799.35
  5. Step 5: Solve for x
    x = 732,781,663,799.35/989,395.48
  6. Step 6: Final answer
    x = 740,635.75

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1.5x scale

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.