Home / 749,116.28-1,033,091.04-490,899.45

Finding the Fourth Proportional to 749,116.28, 1,033,091.04 and 490,899.45

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Solution

The fourth proportional to 749,116.28, 1,033,091.04 and 490,899.45 is: 676,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,116.28 : 1,033,091.04 = 490,899.45 : x
  2. Step 2: Convert to fraction form
    749,116.28/1,033,091.04 = 490,899.45/x
  3. Step 3: Cross multiply
    749,116.28x = 1,033,091.04 × 490,899.45
  4. Step 4: Simplify right side
    749,116.28x = 507,143,823,335.93
  5. Step 5: Solve for x
    x = 507,143,823,335.93/749,116.28
  6. Step 6: Final answer
    x = 676,989.46

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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.