Home / 1,277,685.50-1,916,852.25-478,969.34

Finding the Fourth Proportional to 1,277,685.50, 1,916,852.25 and 478,969.34

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Solution

The fourth proportional to 1,277,685.50, 1,916,852.25 and 478,969.34 is: 718,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,685.50 : 1,916,852.25 = 478,969.34 : x
  2. Step 2: Convert to fraction form
    1,277,685.50/1,916,852.25 = 478,969.34/x
  3. Step 3: Cross multiply
    1,277,685.50x = 1,916,852.25 × 478,969.34
  4. Step 4: Simplify right side
    1,277,685.50x = 918,113,457,060.02
  5. Step 5: Solve for x
    x = 918,113,457,060.02/1,277,685.50
  6. Step 6: Final answer
    x = 718,575.47

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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.