Home / 989,433.92-1,365,422.28-536,728.16

Finding the Fourth Proportional to 989,433.92, 1,365,422.28 and 536,728.16

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Solution

The fourth proportional to 989,433.92, 1,365,422.28 and 536,728.16 is: 740,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,433.92 : 1,365,422.28 = 536,728.16 : x
  2. Step 2: Convert to fraction form
    989,433.92/1,365,422.28 = 536,728.16/x
  3. Step 3: Cross multiply
    989,433.92x = 1,365,422.28 × 536,728.16
  4. Step 4: Simplify right side
    989,433.92x = 732,860,587,967.41
  5. Step 5: Solve for x
    x = 732,860,587,967.41/989,433.92
  6. Step 6: Final answer
    x = 740,686.74

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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.