Home / 510,215.85-704,080.23-280,751.69

Finding the Fourth Proportional to 510,215.85, 704,080.23 and 280,751.69

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Solution

The fourth proportional to 510,215.85, 704,080.23 and 280,751.69 is: 387,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,215.85 : 704,080.23 = 280,751.69 : x
  2. Step 2: Convert to fraction form
    510,215.85/704,080.23 = 280,751.69/x
  3. Step 3: Cross multiply
    510,215.85x = 704,080.23 × 280,751.69
  4. Step 4: Simplify right side
    510,215.85x = 197,671,710,947.69
  5. Step 5: Solve for x
    x = 197,671,710,947.69/510,215.85
  6. Step 6: Final answer
    x = 387,427.62

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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.