Home / 851,254.80-1,174,784.52-469,280.88

Finding the Fourth Proportional to 851,254.80, 1,174,784.52 and 469,280.88

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Solution

The fourth proportional to 851,254.80, 1,174,784.52 and 469,280.88 is: 647,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,254.80 : 1,174,784.52 = 469,280.88 : x
  2. Step 2: Convert to fraction form
    851,254.80/1,174,784.52 = 469,280.88/x
  3. Step 3: Cross multiply
    851,254.80x = 1,174,784.52 × 469,280.88
  4. Step 4: Simplify right side
    851,254.80x = 551,303,913,355.98
  5. Step 5: Solve for x
    x = 551,303,913,355.98/851,254.80
  6. Step 6: Final answer
    x = 647,636.77

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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.