Home / 712,357.20-1,068,535.80-238,928.40

Finding the Fourth Proportional to 712,357.20, 1,068,535.80 and 238,928.40

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Solution

The fourth proportional to 712,357.20, 1,068,535.80 and 238,928.40 is: 358,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,357.20 : 1,068,535.80 = 238,928.40 : x
  2. Step 2: Convert to fraction form
    712,357.20/1,068,535.80 = 238,928.40/x
  3. Step 3: Cross multiply
    712,357.20x = 1,068,535.80 × 238,928.40
  4. Step 4: Simplify right side
    712,357.20x = 255,303,549,036.72
  5. Step 5: Solve for x
    x = 255,303,549,036.72/712,357.20
  6. Step 6: Final answer
    x = 358,392.60

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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.