Home / 887,323.70-1,330,985.55-256,258.10

Finding the Fourth Proportional to 887,323.70, 1,330,985.55 and 256,258.10

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Solution

The fourth proportional to 887,323.70, 1,330,985.55 and 256,258.10 is: 384,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,323.70 : 1,330,985.55 = 256,258.10 : x
  2. Step 2: Convert to fraction form
    887,323.70/1,330,985.55 = 256,258.10/x
  3. Step 3: Cross multiply
    887,323.70x = 1,330,985.55 × 256,258.10
  4. Step 4: Simplify right side
    887,323.70x = 341,075,828,170.46
  5. Step 5: Solve for x
    x = 341,075,828,170.46/887,323.70
  6. Step 6: Final answer
    x = 384,387.15

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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.