Home / 727,539.40-1,091,309.10-651,431.80

Finding the Fourth Proportional to 727,539.40, 1,091,309.10 and 651,431.80

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Solution

The fourth proportional to 727,539.40, 1,091,309.10 and 651,431.80 is: 977,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,539.40 : 1,091,309.10 = 651,431.80 : x
  2. Step 2: Convert to fraction form
    727,539.40/1,091,309.10 = 651,431.80/x
  3. Step 3: Cross multiply
    727,539.40x = 1,091,309.10 × 651,431.80
  4. Step 4: Simplify right side
    727,539.40x = 710,913,451,369.38
  5. Step 5: Solve for x
    x = 710,913,451,369.38/727,539.40
  6. Step 6: Final answer
    x = 977,147.70

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1.5x scale

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.