Home / 742,531.36-1,024,667.28-402,992.80

Finding the Fourth Proportional to 742,531.36, 1,024,667.28 and 402,992.80

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Solution

The fourth proportional to 742,531.36, 1,024,667.28 and 402,992.80 is: 556,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,531.36 : 1,024,667.28 = 402,992.80 : x
  2. Step 2: Convert to fraction form
    742,531.36/1,024,667.28 = 402,992.80/x
  3. Step 3: Cross multiply
    742,531.36x = 1,024,667.28 × 402,992.80
  4. Step 4: Simplify right side
    742,531.36x = 412,933,536,235.58
  5. Step 5: Solve for x
    x = 412,933,536,235.58/742,531.36
  6. Step 6: Final answer
    x = 556,115.95

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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.