Home / 1,329,307.20-1,993,960.80-904,154.40

Finding the Fourth Proportional to 1,329,307.20, 1,993,960.80 and 904,154.40

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Solution

The fourth proportional to 1,329,307.20, 1,993,960.80 and 904,154.40 is: 1,356,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,307.20 : 1,993,960.80 = 904,154.40 : x
  2. Step 2: Convert to fraction form
    1,329,307.20/1,993,960.80 = 904,154.40/x
  3. Step 3: Cross multiply
    1,329,307.20x = 1,993,960.80 × 904,154.40
  4. Step 4: Simplify right side
    1,329,307.20x = 1,802,848,430,747.52
  5. Step 5: Solve for x
    x = 1,802,848,430,747.52/1,329,307.20
  6. Step 6: Final answer
    x = 1,356,231.60

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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.