Home / 712,803.12-1,069,401.51-286,469.34

Finding the Fourth Proportional to 712,803.12, 1,069,401.51 and 286,469.34

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Solution

The fourth proportional to 712,803.12, 1,069,401.51 and 286,469.34 is: 429,783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,803.12 : 1,069,401.51 = 286,469.34 : x
  2. Step 2: Convert to fraction form
    712,803.12/1,069,401.51 = 286,469.34/x
  3. Step 3: Cross multiply
    712,803.12x = 1,069,401.51 × 286,469.34
  4. Step 4: Simplify right side
    712,803.12x = 306,350,744,764.70
  5. Step 5: Solve for x
    x = 306,350,744,764.70/712,803.12
  6. Step 6: Final answer
    x = 429,783.11

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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.