Home / 826,491.20-1,239,736.80-558,802.40

Finding the Fourth Proportional to 826,491.20, 1,239,736.80 and 558,802.40

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Solution

The fourth proportional to 826,491.20, 1,239,736.80 and 558,802.40 is: 838,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,491.20 : 1,239,736.80 = 558,802.40 : x
  2. Step 2: Convert to fraction form
    826,491.20/1,239,736.80 = 558,802.40/x
  3. Step 3: Cross multiply
    826,491.20x = 1,239,736.80 × 558,802.40
  4. Step 4: Simplify right side
    826,491.20x = 692,767,899,208.32
  5. Step 5: Solve for x
    x = 692,767,899,208.32/826,491.20
  6. Step 6: Final answer
    x = 838,203.60

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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.