Home / 1,223,784.24-1,688,820.48-679,970.08

Finding the Fourth Proportional to 1,223,784.24, 1,688,820.48 and 679,970.08

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Solution

The fourth proportional to 1,223,784.24, 1,688,820.48 and 679,970.08 is: 938,357.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,784.24 : 1,688,820.48 = 679,970.08 : x
  2. Step 2: Convert to fraction form
    1,223,784.24/1,688,820.48 = 679,970.08/x
  3. Step 3: Cross multiply
    1,223,784.24x = 1,688,820.48 × 679,970.08
  4. Step 4: Simplify right side
    1,223,784.24x = 1,148,347,396,891.24
  5. Step 5: Solve for x
    x = 1,148,347,396,891.24/1,223,784.24
  6. Step 6: Final answer
    x = 938,357.73

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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.