Home / 1,020,715.78-1,408,208.34-1,019,141.14

Finding the Fourth Proportional to 1,020,715.78, 1,408,208.34 and 1,019,141.14

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Solution

The fourth proportional to 1,020,715.78, 1,408,208.34 and 1,019,141.14 is: 1,406,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,715.78 : 1,408,208.34 = 1,019,141.14 : x
  2. Step 2: Convert to fraction form
    1,020,715.78/1,408,208.34 = 1,019,141.14/x
  3. Step 3: Cross multiply
    1,020,715.78x = 1,408,208.34 × 1,019,141.14
  4. Step 4: Simplify right side
    1,020,715.78x = 1,435,163,052,985.11
  5. Step 5: Solve for x
    x = 1,435,163,052,985.11/1,020,715.78
  6. Step 6: Final answer
    x = 1,406,035.92

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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.