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Finding the Fourth Proportional to 626,740.08, 864,065.96 and 498,108.08

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Solution

The fourth proportional to 626,740.08, 864,065.96 and 498,108.08 is: 686,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,740.08 : 864,065.96 = 498,108.08 : x
  2. Step 2: Convert to fraction form
    626,740.08/864,065.96 = 498,108.08/x
  3. Step 3: Cross multiply
    626,740.08x = 864,065.96 × 498,108.08
  4. Step 4: Simplify right side
    626,740.08x = 430,398,236,328.96
  5. Step 5: Solve for x
    x = 430,398,236,328.96/626,740.08
  6. Step 6: Final answer
    x = 686,725.25

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1.5x scale

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.