Home / 647,867.80-971,364.30-344,312.20

Finding the Fourth Proportional to 647,867.80, 971,364.30 and 344,312.20

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Solution

The fourth proportional to 647,867.80, 971,364.30 and 344,312.20 is: 516,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,867.80 : 971,364.30 = 344,312.20 : x
  2. Step 2: Convert to fraction form
    647,867.80/971,364.30 = 344,312.20/x
  3. Step 3: Cross multiply
    647,867.80x = 971,364.30 × 344,312.20
  4. Step 4: Simplify right side
    647,867.80x = 334,452,579,134.46
  5. Step 5: Solve for x
    x = 334,452,579,134.46/647,867.80
  6. Step 6: Final answer
    x = 516,235.84

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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.