Home / 742,335.12-1,024,424.40-402,803.52

Finding the Fourth Proportional to 742,335.12, 1,024,424.40 and 402,803.52

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Solution

The fourth proportional to 742,335.12, 1,024,424.40 and 402,803.52 is: 555,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,335.12 : 1,024,424.40 = 402,803.52 : x
  2. Step 2: Convert to fraction form
    742,335.12/1,024,424.40 = 402,803.52/x
  3. Step 3: Cross multiply
    742,335.12x = 1,024,424.40 × 402,803.52
  4. Step 4: Simplify right side
    742,335.12x = 412,641,754,293.89
  5. Step 5: Solve for x
    x = 412,641,754,293.89/742,335.12
  6. Step 6: Final answer
    x = 555,869.91

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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.