Home / 748,637.40-1,122,956.10-411,547.80

Finding the Fourth Proportional to 748,637.40, 1,122,956.10 and 411,547.80

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Solution

The fourth proportional to 748,637.40, 1,122,956.10 and 411,547.80 is: 617,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,637.40 : 1,122,956.10 = 411,547.80 : x
  2. Step 2: Convert to fraction form
    748,637.40/1,122,956.10 = 411,547.80/x
  3. Step 3: Cross multiply
    748,637.40x = 1,122,956.10 × 411,547.80
  4. Step 4: Simplify right side
    748,637.40x = 462,150,112,451.58
  5. Step 5: Solve for x
    x = 462,150,112,451.58/748,637.40
  6. Step 6: Final answer
    x = 617,321.70

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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.