Home / 875,152.40-1,312,728.60-210,304.40

Finding the Fourth Proportional to 875,152.40, 1,312,728.60 and 210,304.40

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Solution

The fourth proportional to 875,152.40, 1,312,728.60 and 210,304.40 is: 315,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,152.40 : 1,312,728.60 = 210,304.40 : x
  2. Step 2: Convert to fraction form
    875,152.40/1,312,728.60 = 210,304.40/x
  3. Step 3: Cross multiply
    875,152.40x = 1,312,728.60 × 210,304.40
  4. Step 4: Simplify right side
    875,152.40x = 276,072,600,585.84
  5. Step 5: Solve for x
    x = 276,072,600,585.84/875,152.40
  6. Step 6: Final answer
    x = 315,456.60

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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.