Home / 630,268.80-869,749.44-375,615.36

Finding the Fourth Proportional to 630,268.80, 869,749.44 and 375,615.36

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Solution

The fourth proportional to 630,268.80, 869,749.44 and 375,615.36 is: 518,336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,268.80 : 869,749.44 = 375,615.36 : x
  2. Step 2: Convert to fraction form
    630,268.80/869,749.44 = 375,615.36/x
  3. Step 3: Cross multiply
    630,268.80x = 869,749.44 × 375,615.36
  4. Step 4: Simplify right side
    630,268.80x = 326,691,249,015.40
  5. Step 5: Solve for x
    x = 326,691,249,015.40/630,268.80
  6. Step 6: Final answer
    x = 518,336.38

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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.