Home / 885,738.38-1,328,818.42-286,699.50

Finding the Fourth Proportional to 885,738.38, 1,328,818.42 and 286,699.50

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Solution

The fourth proportional to 885,738.38, 1,328,818.42 and 286,699.50 is: 430,117.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,738.38 : 1,328,818.42 = 286,699.50 : x
  2. Step 2: Convert to fraction form
    885,738.38/1,328,818.42 = 286,699.50/x
  3. Step 3: Cross multiply
    885,738.38x = 1,328,818.42 × 286,699.50
  4. Step 4: Simplify right side
    885,738.38x = 380,971,569,960.70
  5. Step 5: Solve for x
    x = 380,971,569,960.70/885,738.38
  6. Step 6: Final answer
    x = 430,117.49

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Double scale
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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.