Home / 945,143.40-1,417,715.10-862,474.80

Finding the Fourth Proportional to 945,143.40, 1,417,715.10 and 862,474.80

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Solution

The fourth proportional to 945,143.40, 1,417,715.10 and 862,474.80 is: 1,293,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,143.40 : 1,417,715.10 = 862,474.80 : x
  2. Step 2: Convert to fraction form
    945,143.40/1,417,715.10 = 862,474.80/x
  3. Step 3: Cross multiply
    945,143.40x = 1,417,715.10 × 862,474.80
  4. Step 4: Simplify right side
    945,143.40x = 1,222,743,547,329.48
  5. Step 5: Solve for x
    x = 1,222,743,547,329.48/945,143.40
  6. Step 6: Final answer
    x = 1,293,712.20

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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.