Home / 1,029,111.78-1,420,172.86-570,256.07

Finding the Fourth Proportional to 1,029,111.78, 1,420,172.86 and 570,256.07

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Solution

The fourth proportional to 1,029,111.78, 1,420,172.86 and 570,256.07 is: 786,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,111.78 : 1,420,172.86 = 570,256.07 : x
  2. Step 2: Convert to fraction form
    1,029,111.78/1,420,172.86 = 570,256.07/x
  3. Step 3: Cross multiply
    1,029,111.78x = 1,420,172.86 × 570,256.07
  4. Step 4: Simplify right side
    1,029,111.78x = 809,862,193,864.26
  5. Step 5: Solve for x
    x = 809,862,193,864.26/1,029,111.78
  6. Step 6: Final answer
    x = 786,952.60

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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.