Home / 1,298,345.76-1,792,217.16-1,162,139.40

Finding the Fourth Proportional to 1,298,345.76, 1,792,217.16 and 1,162,139.40

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Solution

The fourth proportional to 1,298,345.76, 1,792,217.16 and 1,162,139.40 is: 1,604,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,345.76 : 1,792,217.16 = 1,162,139.40 : x
  2. Step 2: Convert to fraction form
    1,298,345.76/1,792,217.16 = 1,162,139.40/x
  3. Step 3: Cross multiply
    1,298,345.76x = 1,792,217.16 × 1,162,139.40
  4. Step 4: Simplify right side
    1,298,345.76x = 2,082,806,174,992.10
  5. Step 5: Solve for x
    x = 2,082,806,174,992.10/1,298,345.76
  6. Step 6: Final answer
    x = 1,604,199.93

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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.