Home / 1,055,420.89-1,583,132.65-256,696.90

Finding the Fourth Proportional to 1,055,420.89, 1,583,132.65 and 256,696.90

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Solution

The fourth proportional to 1,055,420.89, 1,583,132.65 and 256,696.90 is: 385,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,420.89 : 1,583,132.65 = 256,696.90 : x
  2. Step 2: Convert to fraction form
    1,055,420.89/1,583,132.65 = 256,696.90/x
  3. Step 3: Cross multiply
    1,055,420.89x = 1,583,132.65 × 256,696.90
  4. Step 4: Simplify right side
    1,055,420.89x = 406,385,238,944.21
  5. Step 5: Solve for x
    x = 406,385,238,944.21/1,055,420.89
  6. Step 6: Final answer
    x = 385,045.67

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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.