Home / 870,965.18-1,306,110.80-338,416.10

Finding the Fourth Proportional to 870,965.18, 1,306,110.80 and 338,416.10

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Solution

The fourth proportional to 870,965.18, 1,306,110.80 and 338,416.10 is: 507,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,965.18 : 1,306,110.80 = 338,416.10 : x
  2. Step 2: Convert to fraction form
    870,965.18/1,306,110.80 = 338,416.10/x
  3. Step 3: Cross multiply
    870,965.18x = 1,306,110.80 × 338,416.10
  4. Step 4: Simplify right side
    870,965.18x = 442,008,914,881.25
  5. Step 5: Solve for x
    x = 442,008,914,881.25/870,965.18
  6. Step 6: Final answer
    x = 507,493.21

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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.