Home / 418,931.70-578,138.07-227,957.46

Finding the Fourth Proportional to 418,931.70, 578,138.07 and 227,957.46

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Solution

The fourth proportional to 418,931.70, 578,138.07 and 227,957.46 is: 314,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,931.70 : 578,138.07 = 227,957.46 : x
  2. Step 2: Convert to fraction form
    418,931.70/578,138.07 = 227,957.46/x
  3. Step 3: Cross multiply
    418,931.70x = 578,138.07 × 227,957.46
  4. Step 4: Simplify right side
    418,931.70x = 131,790,885,966.50
  5. Step 5: Solve for x
    x = 131,790,885,966.50/418,931.70
  6. Step 6: Final answer
    x = 314,588.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.