Home / 880,004.80-1,320,007.20-525,419.20

Finding the Fourth Proportional to 880,004.80, 1,320,007.20 and 525,419.20

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Solution

The fourth proportional to 880,004.80, 1,320,007.20 and 525,419.20 is: 788,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,004.80 : 1,320,007.20 = 525,419.20 : x
  2. Step 2: Convert to fraction form
    880,004.80/1,320,007.20 = 525,419.20/x
  3. Step 3: Cross multiply
    880,004.80x = 1,320,007.20 × 525,419.20
  4. Step 4: Simplify right side
    880,004.80x = 693,557,127,018.24
  5. Step 5: Solve for x
    x = 693,557,127,018.24/880,004.80
  6. Step 6: Final answer
    x = 788,128.80

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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.