Home / 1,055,725.20-1,583,587.80-257,000.40

Finding the Fourth Proportional to 1,055,725.20, 1,583,587.80 and 257,000.40

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Solution

The fourth proportional to 1,055,725.20, 1,583,587.80 and 257,000.40 is: 385,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,725.20 : 1,583,587.80 = 257,000.40 : x
  2. Step 2: Convert to fraction form
    1,055,725.20/1,583,587.80 = 257,000.40/x
  3. Step 3: Cross multiply
    1,055,725.20x = 1,583,587.80 × 257,000.40
  4. Step 4: Simplify right side
    1,055,725.20x = 406,982,698,035.12
  5. Step 5: Solve for x
    x = 406,982,698,035.12/1,055,725.20
  6. Step 6: Final answer
    x = 385,500.60

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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.