Home / 878,300.28-1,212,055.98-475,892.28

Finding the Fourth Proportional to 878,300.28, 1,212,055.98 and 475,892.28

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Solution

The fourth proportional to 878,300.28, 1,212,055.98 and 475,892.28 is: 656,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,300.28 : 1,212,055.98 = 475,892.28 : x
  2. Step 2: Convert to fraction form
    878,300.28/1,212,055.98 = 475,892.28/x
  3. Step 3: Cross multiply
    878,300.28x = 1,212,055.98 × 475,892.28
  4. Step 4: Simplify right side
    878,300.28x = 576,808,083,809.84
  5. Step 5: Solve for x
    x = 576,808,083,809.84/878,300.28
  6. Step 6: Final answer
    x = 656,732.21

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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.