Home / 1,128,036.68-1,688,730.78-988,068.68

Finding the Fourth Proportional to 1,128,036.68, 1,688,730.78 and 988,068.68

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Solution

The fourth proportional to 1,128,036.68, 1,688,730.78 and 988,068.68 is: 1,479,191.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,036.68 : 1,688,730.78 = 988,068.68 : x
  2. Step 2: Convert to fraction form
    1,128,036.68/1,688,730.78 = 988,068.68/x
  3. Step 3: Cross multiply
    1,128,036.68x = 1,688,730.78 × 988,068.68
  4. Step 4: Simplify right side
    1,128,036.68x = 1,668,581,992,669.97
  5. Step 5: Solve for x
    x = 1,668,581,992,669.97/1,128,036.68
  6. Step 6: Final answer
    x = 1,479,191.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.