Home / 742,107.52-1,024,110.34-402,575.77

Finding the Fourth Proportional to 742,107.52, 1,024,110.34 and 402,575.77

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Solution

The fourth proportional to 742,107.52, 1,024,110.34 and 402,575.77 is: 555,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,107.52 : 1,024,110.34 = 402,575.77 : x
  2. Step 2: Convert to fraction form
    742,107.52/1,024,110.34 = 402,575.77/x
  3. Step 3: Cross multiply
    742,107.52x = 1,024,110.34 × 402,575.77
  4. Step 4: Simplify right side
    742,107.52x = 412,282,008,690.46
  5. Step 5: Solve for x
    x = 412,282,008,690.46/742,107.52
  6. Step 6: Final answer
    x = 555,555.63

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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.