Home / 679,075.20-1,017,446.40-323,323.20

Finding the Fourth Proportional to 679,075.20, 1,017,446.40 and 323,323.20

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Solution

The fourth proportional to 679,075.20, 1,017,446.40 and 323,323.20 is: 484,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,075.20 : 1,017,446.40 = 323,323.20 : x
  2. Step 2: Convert to fraction form
    679,075.20/1,017,446.40 = 323,323.20/x
  3. Step 3: Cross multiply
    679,075.20x = 1,017,446.40 × 323,323.20
  4. Step 4: Simplify right side
    679,075.20x = 328,964,025,876.48
  5. Step 5: Solve for x
    x = 328,964,025,876.48/679,075.20
  6. Step 6: Final answer
    x = 484,429.45

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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.