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Finding the Fourth Proportional to 577,314.60, 864,870.30 and 310,986.60

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Solution

The fourth proportional to 577,314.60, 864,870.30 and 310,986.60 is: 465,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,314.60 : 864,870.30 = 310,986.60 : x
  2. Step 2: Convert to fraction form
    577,314.60/864,870.30 = 310,986.60/x
  3. Step 3: Cross multiply
    577,314.60x = 864,870.30 × 310,986.60
  4. Step 4: Simplify right side
    577,314.60x = 268,963,074,037.98
  5. Step 5: Solve for x
    x = 268,963,074,037.98/577,314.60
  6. Step 6: Final answer
    x = 465,886.49

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1.5x scale

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.