Home / 1,070,009.78-1,604,998.74-260,401.82

Finding the Fourth Proportional to 1,070,009.78, 1,604,998.74 and 260,401.82

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Solution

The fourth proportional to 1,070,009.78, 1,604,998.74 and 260,401.82 is: 390,598.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,009.78 : 1,604,998.74 = 260,401.82 : x
  2. Step 2: Convert to fraction form
    1,070,009.78/1,604,998.74 = 260,401.82/x
  3. Step 3: Cross multiply
    1,070,009.78x = 1,604,998.74 × 260,401.82
  4. Step 4: Simplify right side
    1,070,009.78x = 417,944,592,993.71
  5. Step 5: Solve for x
    x = 417,944,592,993.71/1,070,009.78
  6. Step 6: Final answer
    x = 390,598.85

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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.