Home / 950,001.78-1,311,002.91-520,308.93

Finding the Fourth Proportional to 950,001.78, 1,311,002.91 and 520,308.93

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Solution

The fourth proportional to 950,001.78, 1,311,002.91 and 520,308.93 is: 718,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,001.78 : 1,311,002.91 = 520,308.93 : x
  2. Step 2: Convert to fraction form
    950,001.78/1,311,002.91 = 520,308.93/x
  3. Step 3: Cross multiply
    950,001.78x = 1,311,002.91 × 520,308.93
  4. Step 4: Simplify right side
    950,001.78x = 682,126,521,328.99
  5. Step 5: Solve for x
    x = 682,126,521,328.99/950,001.78
  6. Step 6: Final answer
    x = 718,026.57

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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.