Home / 871,343.32-1,307,095.66-338,904.76

Finding the Fourth Proportional to 871,343.32, 1,307,095.66 and 338,904.76

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Solution

The fourth proportional to 871,343.32, 1,307,095.66 and 338,904.76 is: 508,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,343.32 : 1,307,095.66 = 338,904.76 : x
  2. Step 2: Convert to fraction form
    871,343.32/1,307,095.66 = 338,904.76/x
  3. Step 3: Cross multiply
    871,343.32x = 1,307,095.66 × 338,904.76
  4. Step 4: Simplify right side
    871,343.32x = 442,980,940,949.34
  5. Step 5: Solve for x
    x = 442,980,940,949.34/871,343.32
  6. Step 6: Final answer
    x = 508,388.52

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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.