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Finding the Fourth Proportional to 519,480.19, 717,002.01 and 304,689.45

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Solution

The fourth proportional to 519,480.19, 717,002.01 and 304,689.45 is: 420,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,480.19 : 717,002.01 = 304,689.45 : x
  2. Step 2: Convert to fraction form
    519,480.19/717,002.01 = 304,689.45/x
  3. Step 3: Cross multiply
    519,480.19x = 717,002.01 × 304,689.45
  4. Step 4: Simplify right side
    519,480.19x = 218,462,948,075.80
  5. Step 5: Solve for x
    x = 218,462,948,075.80/519,480.19
  6. Step 6: Final answer
    x = 420,541.44

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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.