Home / 849,794.21-1,275,478.77-429,365.33

Finding the Fourth Proportional to 849,794.21, 1,275,478.77 and 429,365.33

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Solution

The fourth proportional to 849,794.21, 1,275,478.77 and 429,365.33 is: 644,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,794.21 : 1,275,478.77 = 429,365.33 : x
  2. Step 2: Convert to fraction form
    849,794.21/1,275,478.77 = 429,365.33/x
  3. Step 3: Cross multiply
    849,794.21x = 1,275,478.77 × 429,365.33
  4. Step 4: Simplify right side
    849,794.21x = 547,646,362,989.04
  5. Step 5: Solve for x
    x = 547,646,362,989.04/849,794.21
  6. Step 6: Final answer
    x = 644,445.86

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1.5x scale

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.