Home / 899,645.46-1,349,730.09-425,678.82

Finding the Fourth Proportional to 899,645.46, 1,349,730.09 and 425,678.82

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Solution

The fourth proportional to 899,645.46, 1,349,730.09 and 425,678.82 is: 638,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,645.46 : 1,349,730.09 = 425,678.82 : x
  2. Step 2: Convert to fraction form
    899,645.46/1,349,730.09 = 425,678.82/x
  3. Step 3: Cross multiply
    899,645.46x = 1,349,730.09 × 425,678.82
  4. Step 4: Simplify right side
    899,645.46x = 574,551,512,029.69
  5. Step 5: Solve for x
    x = 574,551,512,029.69/899,645.46
  6. Step 6: Final answer
    x = 638,642.15

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1.5x scale

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.