Home / 487,632.96-671,438.16-426,863.52

Finding the Fourth Proportional to 487,632.96, 671,438.16 and 426,863.52

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Solution

The fourth proportional to 487,632.96, 671,438.16 and 426,863.52 is: 587,762.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,632.96 : 671,438.16 = 426,863.52 : x
  2. Step 2: Convert to fraction form
    487,632.96/671,438.16 = 426,863.52/x
  3. Step 3: Cross multiply
    487,632.96x = 671,438.16 × 426,863.52
  4. Step 4: Simplify right side
    487,632.96x = 286,612,456,439.92
  5. Step 5: Solve for x
    x = 286,612,456,439.92/487,632.96
  6. Step 6: Final answer
    x = 587,762.68

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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.