Home / 886,868.45-1,223,878.12-478,970.38

Finding the Fourth Proportional to 886,868.45, 1,223,878.12 and 478,970.38

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Solution

The fourth proportional to 886,868.45, 1,223,878.12 and 478,970.38 is: 660,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,868.45 : 1,223,878.12 = 478,970.38 : x
  2. Step 2: Convert to fraction form
    886,868.45/1,223,878.12 = 478,970.38/x
  3. Step 3: Cross multiply
    886,868.45x = 1,223,878.12 × 478,970.38
  4. Step 4: Simplify right side
    886,868.45x = 586,201,368,210.09
  5. Step 5: Solve for x
    x = 586,201,368,210.09/886,868.45
  6. Step 6: Final answer
    x = 660,978.94

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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.