Home / 847,220.30-1,270,830.45-286,246.70

Finding the Fourth Proportional to 847,220.30, 1,270,830.45 and 286,246.70

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Solution

The fourth proportional to 847,220.30, 1,270,830.45 and 286,246.70 is: 429,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,220.30 : 1,270,830.45 = 286,246.70 : x
  2. Step 2: Convert to fraction form
    847,220.30/1,270,830.45 = 286,246.70/x
  3. Step 3: Cross multiply
    847,220.30x = 1,270,830.45 × 286,246.70
  4. Step 4: Simplify right side
    847,220.30x = 363,771,022,572.02
  5. Step 5: Solve for x
    x = 363,771,022,572.02/847,220.30
  6. Step 6: Final answer
    x = 429,370.05

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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.