Home / 685,580.24-1,028,764.12-535,398.95

Finding the Fourth Proportional to 685,580.24, 1,028,764.12 and 535,398.95

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Solution

The fourth proportional to 685,580.24, 1,028,764.12 and 535,398.95 is: 803,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,580.24 : 1,028,764.12 = 535,398.95 : x
  2. Step 2: Convert to fraction form
    685,580.24/1,028,764.12 = 535,398.95/x
  3. Step 3: Cross multiply
    685,580.24x = 1,028,764.12 × 535,398.95
  4. Step 4: Simplify right side
    685,580.24x = 550,799,225,840.35
  5. Step 5: Solve for x
    x = 550,799,225,840.35/685,580.24
  6. Step 6: Final answer
    x = 803,405.93

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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.