Home / 4,872,279.40-7,309,075.20-1,678,384.60

Finding the Fourth Proportional to 4,872,279.40, 7,309,075.20 and 1,678,384.60

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Solution

The fourth proportional to 4,872,279.40, 7,309,075.20 and 1,678,384.60 is: 2,517,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872,279.40 : 7,309,075.20 = 1,678,384.60 : x
  2. Step 2: Convert to fraction form
    4,872,279.40/7,309,075.20 = 1,678,384.60/x
  3. Step 3: Cross multiply
    4,872,279.40x = 7,309,075.20 × 1,678,384.60
  4. Step 4: Simplify right side
    4,872,279.40x = 12,267,439,255,921.92
  5. Step 5: Solve for x
    x = 12,267,439,255,921.92/4,872,279.40
  6. Step 6: Final answer
    x = 2,517,802.91

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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.