Home / 1,299,122.16-1,948,557.95-400,322.57

Finding the Fourth Proportional to 1,299,122.16, 1,948,557.95 and 400,322.57

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Solution

The fourth proportional to 1,299,122.16, 1,948,557.95 and 400,322.57 is: 600,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,122.16 : 1,948,557.95 = 400,322.57 : x
  2. Step 2: Convert to fraction form
    1,299,122.16/1,948,557.95 = 400,322.57/x
  3. Step 3: Cross multiply
    1,299,122.16x = 1,948,557.95 × 400,322.57
  4. Step 4: Simplify right side
    1,299,122.16x = 780,051,714,593.53
  5. Step 5: Solve for x
    x = 780,051,714,593.53/1,299,122.16
  6. Step 6: Final answer
    x = 600,445.24

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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.