Home / 558,014.55-770,025.63-312,985.80

Finding the Fourth Proportional to 558,014.55, 770,025.63 and 312,985.80

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Solution

The fourth proportional to 558,014.55, 770,025.63 and 312,985.80 is: 431,901.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,014.55 : 770,025.63 = 312,985.80 : x
  2. Step 2: Convert to fraction form
    558,014.55/770,025.63 = 312,985.80/x
  3. Step 3: Cross multiply
    558,014.55x = 770,025.63 × 312,985.80
  4. Step 4: Simplify right side
    558,014.55x = 241,007,087,826.05
  5. Step 5: Solve for x
    x = 241,007,087,826.05/558,014.55
  6. Step 6: Final answer
    x = 431,901.08

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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.