Home / 1,478,419.28-2,216,780.09-578,807.76

Finding the Fourth Proportional to 1,478,419.28, 2,216,780.09 and 578,807.76

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Solution

The fourth proportional to 1,478,419.28, 2,216,780.09 and 578,807.76 is: 867,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,419.28 : 2,216,780.09 = 578,807.76 : x
  2. Step 2: Convert to fraction form
    1,478,419.28/2,216,780.09 = 578,807.76/x
  3. Step 3: Cross multiply
    1,478,419.28x = 2,216,780.09 × 578,807.76
  4. Step 4: Simplify right side
    1,478,419.28x = 1,283,089,525,894.91
  5. Step 5: Solve for x
    x = 1,283,089,525,894.91/1,478,419.28
  6. Step 6: Final answer
    x = 867,879.33

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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.