Home / 455,280.90-681,366.15-399,293.70

Finding the Fourth Proportional to 455,280.90, 681,366.15 and 399,293.70

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Solution

The fourth proportional to 455,280.90, 681,366.15 and 399,293.70 is: 597,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,280.90 : 681,366.15 = 399,293.70 : x
  2. Step 2: Convert to fraction form
    455,280.90/681,366.15 = 399,293.70/x
  3. Step 3: Cross multiply
    455,280.90x = 681,366.15 × 399,293.70
  4. Step 4: Simplify right side
    455,280.90x = 272,065,211,088.26
  5. Step 5: Solve for x
    x = 272,065,211,088.26/455,280.90
  6. Step 6: Final answer
    x = 597,576.60

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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.