Home / 878,480.04-1,212,432.48-556,220.04

Finding the Fourth Proportional to 878,480.04, 1,212,432.48 and 556,220.04

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Solution

The fourth proportional to 878,480.04, 1,212,432.48 and 556,220.04 is: 767,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,480.04 : 1,212,432.48 = 556,220.04 : x
  2. Step 2: Convert to fraction form
    878,480.04/1,212,432.48 = 556,220.04/x
  3. Step 3: Cross multiply
    878,480.04x = 1,212,432.48 × 556,220.04
  4. Step 4: Simplify right side
    878,480.04x = 674,379,242,522.90
  5. Step 5: Solve for x
    x = 674,379,242,522.90/878,480.04
  6. Step 6: Final answer
    x = 767,665.98

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Double scale
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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.