Home / 1,223,555.25-1,688,459.31-679,725.24

Finding the Fourth Proportional to 1,223,555.25, 1,688,459.31 and 679,725.24

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Solution

The fourth proportional to 1,223,555.25, 1,688,459.31 and 679,725.24 is: 937,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,555.25 : 1,688,459.31 = 679,725.24 : x
  2. Step 2: Convert to fraction form
    1,223,555.25/1,688,459.31 = 679,725.24/x
  3. Step 3: Cross multiply
    1,223,555.25x = 1,688,459.31 × 679,725.24
  4. Step 4: Simplify right side
    1,223,555.25x = 1,147,688,403,388.26
  5. Step 5: Solve for x
    x = 1,147,688,403,388.26/1,223,555.25
  6. Step 6: Final answer
    x = 937,994.75

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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.