Home / 638,433.03-881,047.35-348,044.79

Finding the Fourth Proportional to 638,433.03, 881,047.35 and 348,044.79

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Solution

The fourth proportional to 638,433.03, 881,047.35 and 348,044.79 is: 480,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,433.03 : 881,047.35 = 348,044.79 : x
  2. Step 2: Convert to fraction form
    638,433.03/881,047.35 = 348,044.79/x
  3. Step 3: Cross multiply
    638,433.03x = 881,047.35 × 348,044.79
  4. Step 4: Simplify right side
    638,433.03x = 306,643,939,910.81
  5. Step 5: Solve for x
    x = 306,643,939,910.81/638,433.03
  6. Step 6: Final answer
    x = 480,307.14

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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.