Home / 678,714.80-1,018,075.28-229,438.07

Finding the Fourth Proportional to 678,714.80, 1,018,075.28 and 229,438.07

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Solution

The fourth proportional to 678,714.80, 1,018,075.28 and 229,438.07 is: 344,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,714.80 : 1,018,075.28 = 229,438.07 : x
  2. Step 2: Convert to fraction form
    678,714.80/1,018,075.28 = 229,438.07/x
  3. Step 3: Cross multiply
    678,714.80x = 1,018,075.28 × 229,438.07
  4. Step 4: Simplify right side
    678,714.80x = 233,585,226,228.71
  5. Step 5: Solve for x
    x = 233,585,226,228.71/678,714.80
  6. Step 6: Final answer
    x = 344,158.15

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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.