Home / 853,401.10-1,280,101.65-433,497.10

Finding the Fourth Proportional to 853,401.10, 1,280,101.65 and 433,497.10

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Solution

The fourth proportional to 853,401.10, 1,280,101.65 and 433,497.10 is: 650,245.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,401.10 : 1,280,101.65 = 433,497.10 : x
  2. Step 2: Convert to fraction form
    853,401.10/1,280,101.65 = 433,497.10/x
  3. Step 3: Cross multiply
    853,401.10x = 1,280,101.65 × 433,497.10
  4. Step 4: Simplify right side
    853,401.10x = 554,920,352,980.22
  5. Step 5: Solve for x
    x = 554,920,352,980.22/853,401.10
  6. Step 6: Final answer
    x = 650,245.65

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Double scale
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Similar ratio
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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.