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Finding the Fourth Proportional to 553,152.96, 763,360.80 and 326,797.92

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Solution

The fourth proportional to 553,152.96, 763,360.80 and 326,797.92 is: 450,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,152.96 : 763,360.80 = 326,797.92 : x
  2. Step 2: Convert to fraction form
    553,152.96/763,360.80 = 326,797.92/x
  3. Step 3: Cross multiply
    553,152.96x = 763,360.80 × 326,797.92
  4. Step 4: Simplify right side
    553,152.96x = 249,464,721,649.54
  5. Step 5: Solve for x
    x = 249,464,721,649.54/553,152.96
  6. Step 6: Final answer
    x = 450,986.87

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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.