Home / 1,291,387.36-1,937,391.60-404,923.36

Finding the Fourth Proportional to 1,291,387.36, 1,937,391.60 and 404,923.36

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Solution

The fourth proportional to 1,291,387.36, 1,937,391.60 and 404,923.36 is: 607,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,387.36 : 1,937,391.60 = 404,923.36 : x
  2. Step 2: Convert to fraction form
    1,291,387.36/1,937,391.60 = 404,923.36/x
  3. Step 3: Cross multiply
    1,291,387.36x = 1,937,391.60 × 404,923.36
  4. Step 4: Simplify right side
    1,291,387.36x = 784,495,116,307.78
  5. Step 5: Solve for x
    x = 784,495,116,307.78/1,291,387.36
  6. Step 6: Final answer
    x = 607,482.42

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Why These Related Problems?

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