Home / 928,159.62-1,392,038.95-329,140.32

Finding the Fourth Proportional to 928,159.62, 1,392,038.95 and 329,140.32

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Solution

The fourth proportional to 928,159.62, 1,392,038.95 and 329,140.32 is: 493,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,159.62 : 1,392,038.95 = 329,140.32 : x
  2. Step 2: Convert to fraction form
    928,159.62/1,392,038.95 = 329,140.32/x
  3. Step 3: Cross multiply
    928,159.62x = 1,392,038.95 × 329,140.32
  4. Step 4: Simplify right side
    928,159.62x = 458,176,145,455.46
  5. Step 5: Solve for x
    x = 458,176,145,455.46/928,159.62
  6. Step 6: Final answer
    x = 493,639.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.