Home / 805,312.38-1,111,302.74-442,733.60

Finding the Fourth Proportional to 805,312.38, 1,111,302.74 and 442,733.60

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Solution

The fourth proportional to 805,312.38, 1,111,302.74 and 442,733.60 is: 610,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,312.38 : 1,111,302.74 = 442,733.60 : x
  2. Step 2: Convert to fraction form
    805,312.38/1,111,302.74 = 442,733.60/x
  3. Step 3: Cross multiply
    805,312.38x = 1,111,302.74 × 442,733.60
  4. Step 4: Simplify right side
    805,312.38x = 492,011,062,770.06
  5. Step 5: Solve for x
    x = 492,011,062,770.06/805,312.38
  6. Step 6: Final answer
    x = 610,956.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.