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Finding the Fourth Proportional to 486,533.40, 729,216.90 and 249,754.20

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Solution

The fourth proportional to 486,533.40, 729,216.90 and 249,754.20 is: 374,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,533.40 : 729,216.90 = 249,754.20 : x
  2. Step 2: Convert to fraction form
    486,533.40/729,216.90 = 249,754.20/x
  3. Step 3: Cross multiply
    486,533.40x = 729,216.90 × 249,754.20
  4. Step 4: Simplify right side
    486,533.40x = 182,124,983,485.98
  5. Step 5: Solve for x
    x = 182,124,983,485.98/486,533.40
  6. Step 6: Final answer
    x = 374,331.92

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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.