Home / 638,459.02-881,046.48-348,064.30

Finding the Fourth Proportional to 638,459.02, 881,046.48 and 348,064.30

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Solution

The fourth proportional to 638,459.02, 881,046.48 and 348,064.30 is: 480,314.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,459.02 : 881,046.48 = 348,064.30 : x
  2. Step 2: Convert to fraction form
    638,459.02/881,046.48 = 348,064.30/x
  3. Step 3: Cross multiply
    638,459.02x = 881,046.48 × 348,064.30
  4. Step 4: Simplify right side
    638,459.02x = 306,660,826,328.66
  5. Step 5: Solve for x
    x = 306,660,826,328.66/638,459.02
  6. Step 6: Final answer
    x = 480,314.03

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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.