Home / 915,399.83-1,263,326.28-507,629.36

Finding the Fourth Proportional to 915,399.83, 1,263,326.28 and 507,629.36

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Solution

The fourth proportional to 915,399.83, 1,263,326.28 and 507,629.36 is: 700,569.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,399.83 : 1,263,326.28 = 507,629.36 : x
  2. Step 2: Convert to fraction form
    915,399.83/1,263,326.28 = 507,629.36/x
  3. Step 3: Cross multiply
    915,399.83x = 1,263,326.28 × 507,629.36
  4. Step 4: Simplify right side
    915,399.83x = 641,301,510,987.58
  5. Step 5: Solve for x
    x = 641,301,510,987.58/915,399.83
  6. Step 6: Final answer
    x = 700,569.84

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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.