Home / 880,310.36-1,214,838.06-498,328.76

Finding the Fourth Proportional to 880,310.36, 1,214,838.06 and 498,328.76

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Solution

The fourth proportional to 880,310.36, 1,214,838.06 and 498,328.76 is: 687,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,310.36 : 1,214,838.06 = 498,328.76 : x
  2. Step 2: Convert to fraction form
    880,310.36/1,214,838.06 = 498,328.76/x
  3. Step 3: Cross multiply
    880,310.36x = 1,214,838.06 × 498,328.76
  4. Step 4: Simplify right side
    880,310.36x = 605,388,744,040.61
  5. Step 5: Solve for x
    x = 605,388,744,040.61/880,310.36
  6. Step 6: Final answer
    x = 687,699.22

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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.