Home / 1,126,210.28-1,685,388.36-921,439.82

Finding the Fourth Proportional to 1,126,210.28, 1,685,388.36 and 921,439.82

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Solution

The fourth proportional to 1,126,210.28, 1,685,388.36 and 921,439.82 is: 1,378,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,210.28 : 1,685,388.36 = 921,439.82 : x
  2. Step 2: Convert to fraction form
    1,126,210.28/1,685,388.36 = 921,439.82/x
  3. Step 3: Cross multiply
    1,126,210.28x = 1,685,388.36 × 921,439.82
  4. Step 4: Simplify right side
    1,126,210.28x = 1,552,983,947,068.50
  5. Step 5: Solve for x
    x = 1,552,983,947,068.50/1,126,210.28
  6. Step 6: Final answer
    x = 1,378,946.70

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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.