Home / 876,648.30-1,314,583.65-403,478.70

Finding the Fourth Proportional to 876,648.30, 1,314,583.65 and 403,478.70

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Solution

The fourth proportional to 876,648.30, 1,314,583.65 and 403,478.70 is: 605,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,648.30 : 1,314,583.65 = 403,478.70 : x
  2. Step 2: Convert to fraction form
    876,648.30/1,314,583.65 = 403,478.70/x
  3. Step 3: Cross multiply
    876,648.30x = 1,314,583.65 × 403,478.70
  4. Step 4: Simplify right side
    876,648.30x = 530,406,502,143.26
  5. Step 5: Solve for x
    x = 530,406,502,143.26/876,648.30
  6. Step 6: Final answer
    x = 605,039.10

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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.