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Finding the Fourth Proportional to 714,880.64, 986,288.60 and 456,908.60

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Solution

The fourth proportional to 714,880.64, 986,288.60 and 456,908.60 is: 630,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,880.64 : 986,288.60 = 456,908.60 : x
  2. Step 2: Convert to fraction form
    714,880.64/986,288.60 = 456,908.60/x
  3. Step 3: Cross multiply
    714,880.64x = 986,288.60 × 456,908.60
  4. Step 4: Simplify right side
    714,880.64x = 450,643,736,205.97
  5. Step 5: Solve for x
    x = 450,643,736,205.97/714,880.64
  6. Step 6: Final answer
    x = 630,376.20

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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.