Home / 1,015,296.40-1,401,078.48-556,405.36

Finding the Fourth Proportional to 1,015,296.40, 1,401,078.48 and 556,405.36

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Solution

The fourth proportional to 1,015,296.40, 1,401,078.48 and 556,405.36 is: 767,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,296.40 : 1,401,078.48 = 556,405.36 : x
  2. Step 2: Convert to fraction form
    1,015,296.40/1,401,078.48 = 556,405.36/x
  3. Step 3: Cross multiply
    1,015,296.40x = 1,401,078.48 × 556,405.36
  4. Step 4: Simplify right side
    1,015,296.40x = 779,567,576,052.65
  5. Step 5: Solve for x
    x = 779,567,576,052.65/1,015,296.40
  6. Step 6: Final answer
    x = 767,822.65

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1.5x scale

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.