Home / 678,159.30-1,017,409.05-299,152.20

Finding the Fourth Proportional to 678,159.30, 1,017,409.05 and 299,152.20

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Solution

The fourth proportional to 678,159.30, 1,017,409.05 and 299,152.20 is: 448,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,159.30 : 1,017,409.05 = 299,152.20 : x
  2. Step 2: Convert to fraction form
    678,159.30/1,017,409.05 = 299,152.20/x
  3. Step 3: Cross multiply
    678,159.30x = 1,017,409.05 × 299,152.20
  4. Step 4: Simplify right side
    678,159.30x = 304,360,155,607.41
  5. Step 5: Solve for x
    x = 304,360,155,607.41/678,159.30
  6. Step 6: Final answer
    x = 448,803.34

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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.