Home / 638,435.04-881,050.12-348,046.80

Finding the Fourth Proportional to 638,435.04, 881,050.12 and 348,046.80

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Solution

The fourth proportional to 638,435.04, 881,050.12 and 348,046.80 is: 480,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,435.04 : 881,050.12 = 348,046.80 : x
  2. Step 2: Convert to fraction form
    638,435.04/881,050.12 = 348,046.80/x
  3. Step 3: Cross multiply
    638,435.04x = 881,050.12 × 348,046.80
  4. Step 4: Simplify right side
    638,435.04x = 306,646,674,905.62
  5. Step 5: Solve for x
    x = 306,646,674,905.62/638,435.04
  6. Step 6: Final answer
    x = 480,309.91

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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.