Home / 1,707,945.76-2,559,946.20-642,307.60

Finding the Fourth Proportional to 1,707,945.76, 2,559,946.20 and 642,307.60

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Solution

The fourth proportional to 1,707,945.76, 2,559,946.20 and 642,307.60 is: 962,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707,945.76 : 2,559,946.20 = 642,307.60 : x
  2. Step 2: Convert to fraction form
    1,707,945.76/2,559,946.20 = 642,307.60/x
  3. Step 3: Cross multiply
    1,707,945.76x = 2,559,946.20 × 642,307.60
  4. Step 4: Simplify right side
    1,707,945.76x = 1,644,272,899,851.12
  5. Step 5: Solve for x
    x = 1,644,272,899,851.12/1,707,945.76
  6. Step 6: Final answer
    x = 962,719.62

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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.