Home / 1,003,990.60-1,501,611.90-898,139.80

Finding the Fourth Proportional to 1,003,990.60, 1,501,611.90 and 898,139.80

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Solution

The fourth proportional to 1,003,990.60, 1,501,611.90 and 898,139.80 is: 1,343,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,990.60 : 1,501,611.90 = 898,139.80 : x
  2. Step 2: Convert to fraction form
    1,003,990.60/1,501,611.90 = 898,139.80/x
  3. Step 3: Cross multiply
    1,003,990.60x = 1,501,611.90 × 898,139.80
  4. Step 4: Simplify right side
    1,003,990.60x = 1,348,657,411,543.62
  5. Step 5: Solve for x
    x = 1,348,657,411,543.62/1,003,990.60
  6. Step 6: Final answer
    x = 1,343,296.85

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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.