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Finding the Fourth Proportional to 348,634.20, 487,465.80 and 348,634.20

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Solution

The fourth proportional to 348,634.20, 487,465.80 and 348,634.20 is: 487,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,634.20 : 487,465.80 = 348,634.20 : x
  2. Step 2: Convert to fraction form
    348,634.20/487,465.80 = 348,634.20/x
  3. Step 3: Cross multiply
    348,634.20x = 487,465.80 × 348,634.20
  4. Step 4: Simplify right side
    348,634.20x = 169,947,249,210.36
  5. Step 5: Solve for x
    x = 169,947,249,210.36/348,634.20
  6. Step 6: Final answer
    x = 487,465.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.