Home / 1,429,689.60-1,972,977-776,316.45

Finding the Fourth Proportional to 1,429,689.60, 1,972,977 and 776,316.45

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Solution

The fourth proportional to 1,429,689.60, 1,972,977 and 776,316.45 is: 1,071,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,689.60 : 1,972,977 = 776,316.45 : x
  2. Step 2: Convert to fraction form
    1,429,689.60/1,972,977 = 776,316.45/x
  3. Step 3: Cross multiply
    1,429,689.60x = 1,972,977 × 776,316.45
  4. Step 4: Simplify right side
    1,429,689.60x = 1,531,654,500,571.65
  5. Step 5: Solve for x
    x = 1,531,654,500,571.65/1,429,689.60
  6. Step 6: Final answer
    x = 1,071,319.61

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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.