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Finding the Fourth Proportional to 978,501.47, 1,466,335.64 and 674,583.66

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Solution

The fourth proportional to 978,501.47, 1,466,335.64 and 674,583.66 is: 1,010,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,501.47 : 1,466,335.64 = 674,583.66 : x
  2. Step 2: Convert to fraction form
    978,501.47/1,466,335.64 = 674,583.66/x
  3. Step 3: Cross multiply
    978,501.47x = 1,466,335.64 × 674,583.66
  4. Step 4: Simplify right side
    978,501.47x = 989,166,064,506.10
  5. Step 5: Solve for x
    x = 989,166,064,506.10/978,501.47
  6. Step 6: Final answer
    x = 1,010,898.91

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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.