Home / 1,298,172.86-1,947,480.72-578,775.60

Finding the Fourth Proportional to 1,298,172.86, 1,947,480.72 and 578,775.60

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Solution

The fourth proportional to 1,298,172.86, 1,947,480.72 and 578,775.60 is: 868,262.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,172.86 : 1,947,480.72 = 578,775.60 : x
  2. Step 2: Convert to fraction form
    1,298,172.86/1,947,480.72 = 578,775.60/x
  3. Step 3: Cross multiply
    1,298,172.86x = 1,947,480.72 × 578,775.60
  4. Step 4: Simplify right side
    1,298,172.86x = 1,127,154,322,206.43
  5. Step 5: Solve for x
    x = 1,127,154,322,206.43/1,298,172.86
  6. Step 6: Final answer
    x = 868,262.12

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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.