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Finding the Fourth Proportional to 508,746.80, 763,465.80 and 284,106.80

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Solution

The fourth proportional to 508,746.80, 763,465.80 and 284,106.80 is: 426,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,746.80 : 763,465.80 = 284,106.80 : x
  2. Step 2: Convert to fraction form
    508,746.80/763,465.80 = 284,106.80/x
  3. Step 3: Cross multiply
    508,746.80x = 763,465.80 × 284,106.80
  4. Step 4: Simplify right side
    508,746.80x = 216,905,825,347.44
  5. Step 5: Solve for x
    x = 216,905,825,347.44/508,746.80
  6. Step 6: Final answer
    x = 426,353.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.