Home / 1,246,643.20-1,869,964.80-448,307.20

Finding the Fourth Proportional to 1,246,643.20, 1,869,964.80 and 448,307.20

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Solution

The fourth proportional to 1,246,643.20, 1,869,964.80 and 448,307.20 is: 672,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,643.20 : 1,869,964.80 = 448,307.20 : x
  2. Step 2: Convert to fraction form
    1,246,643.20/1,869,964.80 = 448,307.20/x
  3. Step 3: Cross multiply
    1,246,643.20x = 1,869,964.80 × 448,307.20
  4. Step 4: Simplify right side
    1,246,643.20x = 838,318,683,586.56
  5. Step 5: Solve for x
    x = 838,318,683,586.56/1,246,643.20
  6. Step 6: Final answer
    x = 672,460.80

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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.