Home / 376,720.74-520,011.09-249,437.34

Finding the Fourth Proportional to 376,720.74, 520,011.09 and 249,437.34

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Solution

The fourth proportional to 376,720.74, 520,011.09 and 249,437.34 is: 344,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,720.74 : 520,011.09 = 249,437.34 : x
  2. Step 2: Convert to fraction form
    376,720.74/520,011.09 = 249,437.34/x
  3. Step 3: Cross multiply
    376,720.74x = 520,011.09 × 249,437.34
  4. Step 4: Simplify right side
    376,720.74x = 129,710,183,060.10
  5. Step 5: Solve for x
    x = 129,710,183,060.10/376,720.74
  6. Step 6: Final answer
    x = 344,313.89

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1.5x scale

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.