Home / 910,444.80-1,365,667.20-438,052.80

Finding the Fourth Proportional to 910,444.80, 1,365,667.20 and 438,052.80

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Solution

The fourth proportional to 910,444.80, 1,365,667.20 and 438,052.80 is: 657,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,444.80 : 1,365,667.20 = 438,052.80 : x
  2. Step 2: Convert to fraction form
    910,444.80/1,365,667.20 = 438,052.80/x
  3. Step 3: Cross multiply
    910,444.80x = 1,365,667.20 × 438,052.80
  4. Step 4: Simplify right side
    910,444.80x = 598,234,340,828.16
  5. Step 5: Solve for x
    x = 598,234,340,828.16/910,444.80
  6. Step 6: Final answer
    x = 657,079.20

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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.