Home / 742,257.36-1,024,310.52-402,718.32

Finding the Fourth Proportional to 742,257.36, 1,024,310.52 and 402,718.32

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Solution

The fourth proportional to 742,257.36, 1,024,310.52 and 402,718.32 is: 555,748.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,257.36 : 1,024,310.52 = 402,718.32 : x
  2. Step 2: Convert to fraction form
    742,257.36/1,024,310.52 = 402,718.32/x
  3. Step 3: Cross multiply
    742,257.36x = 1,024,310.52 × 402,718.32
  4. Step 4: Simplify right side
    742,257.36x = 412,508,611,772.73
  5. Step 5: Solve for x
    x = 412,508,611,772.73/742,257.36
  6. Step 6: Final answer
    x = 555,748.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.