Home / 908,784.30-1,363,176.45-310,421.10

Finding the Fourth Proportional to 908,784.30, 1,363,176.45 and 310,421.10

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Solution

The fourth proportional to 908,784.30, 1,363,176.45 and 310,421.10 is: 465,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,784.30 : 1,363,176.45 = 310,421.10 : x
  2. Step 2: Convert to fraction form
    908,784.30/1,363,176.45 = 310,421.10/x
  3. Step 3: Cross multiply
    908,784.30x = 1,363,176.45 × 310,421.10
  4. Step 4: Simplify right side
    908,784.30x = 423,158,733,103.10
  5. Step 5: Solve for x
    x = 423,158,733,103.10/908,784.30
  6. Step 6: Final answer
    x = 465,631.65

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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.