Home / 853,275.63-1,280,613.05-432,671.79

Finding the Fourth Proportional to 853,275.63, 1,280,613.05 and 432,671.79

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Solution

The fourth proportional to 853,275.63, 1,280,613.05 and 432,671.79 is: 649,362.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,275.63 : 1,280,613.05 = 432,671.79 : x
  2. Step 2: Convert to fraction form
    853,275.63/1,280,613.05 = 432,671.79/x
  3. Step 3: Cross multiply
    853,275.63x = 1,280,613.05 × 432,671.79
  4. Step 4: Simplify right side
    853,275.63x = 554,085,138,477.50
  5. Step 5: Solve for x
    x = 554,085,138,477.50/853,275.63
  6. Step 6: Final answer
    x = 649,362.43

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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.