Home / 1,223,368.88-1,688,381.41-740,200.40

Finding the Fourth Proportional to 1,223,368.88, 1,688,381.41 and 740,200.40

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Solution

The fourth proportional to 1,223,368.88, 1,688,381.41 and 740,200.40 is: 1,021,556.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,368.88 : 1,688,381.41 = 740,200.40 : x
  2. Step 2: Convert to fraction form
    1,223,368.88/1,688,381.41 = 740,200.40/x
  3. Step 3: Cross multiply
    1,223,368.88x = 1,688,381.41 × 740,200.40
  4. Step 4: Simplify right side
    1,223,368.88x = 1,249,740,595,034.56
  5. Step 5: Solve for x
    x = 1,249,740,595,034.56/1,223,368.88
  6. Step 6: Final answer
    x = 1,021,556.63

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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.