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Finding the Fourth Proportional to 978,597.46, 1,350,466.95 and 570,979.54

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Solution

The fourth proportional to 978,597.46, 1,350,466.95 and 570,979.54 is: 787,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,597.46 : 1,350,466.95 = 570,979.54 : x
  2. Step 2: Convert to fraction form
    978,597.46/1,350,466.95 = 570,979.54/x
  3. Step 3: Cross multiply
    978,597.46x = 1,350,466.95 × 570,979.54
  4. Step 4: Simplify right side
    978,597.46x = 771,088,997,896.20
  5. Step 5: Solve for x
    x = 771,088,997,896.20/978,597.46
  6. Step 6: Final answer
    x = 787,953.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.