Home / 1,377,388.71-2,064,899.70-478,713.69

Finding the Fourth Proportional to 1,377,388.71, 2,064,899.70 and 478,713.69

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Solution

The fourth proportional to 1,377,388.71, 2,064,899.70 and 478,713.69 is: 717,659.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,388.71 : 2,064,899.70 = 478,713.69 : x
  2. Step 2: Convert to fraction form
    1,377,388.71/2,064,899.70 = 478,713.69/x
  3. Step 3: Cross multiply
    1,377,388.71x = 2,064,899.70 × 478,713.69
  4. Step 4: Simplify right side
    1,377,388.71x = 988,495,754,866.89
  5. Step 5: Solve for x
    x = 988,495,754,866.89/1,377,388.71
  6. Step 6: Final answer
    x = 717,659.25

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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.