Home / 1,377,376.71-2,064,881.73-478,701.69

Finding the Fourth Proportional to 1,377,376.71, 2,064,881.73 and 478,701.69

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Solution

The fourth proportional to 1,377,376.71, 2,064,881.73 and 478,701.69 is: 717,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,376.71 : 2,064,881.73 = 478,701.69 : x
  2. Step 2: Convert to fraction form
    1,377,376.71/2,064,881.73 = 478,701.69/x
  3. Step 3: Cross multiply
    1,377,376.71x = 2,064,881.73 × 478,701.69
  4. Step 4: Simplify right side
    1,377,376.71x = 988,462,373,801.12
  5. Step 5: Solve for x
    x = 988,462,373,801.12/1,377,376.71
  6. Step 6: Final answer
    x = 717,641.27

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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.