Home / 852,255.40-1,278,383.10-537,068.20

Finding the Fourth Proportional to 852,255.40, 1,278,383.10 and 537,068.20

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Solution

The fourth proportional to 852,255.40, 1,278,383.10 and 537,068.20 is: 805,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,255.40 : 1,278,383.10 = 537,068.20 : x
  2. Step 2: Convert to fraction form
    852,255.40/1,278,383.10 = 537,068.20/x
  3. Step 3: Cross multiply
    852,255.40x = 1,278,383.10 × 537,068.20
  4. Step 4: Simplify right side
    852,255.40x = 686,578,910,427.42
  5. Step 5: Solve for x
    x = 686,578,910,427.42/852,255.40
  6. Step 6: Final answer
    x = 805,602.30

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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.