Home / 1,565,922.57-2,160,936.39-921,384.51

Finding the Fourth Proportional to 1,565,922.57, 2,160,936.39 and 921,384.51

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Solution

The fourth proportional to 1,565,922.57, 2,160,936.39 and 921,384.51 is: 1,271,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,922.57 : 2,160,936.39 = 921,384.51 : x
  2. Step 2: Convert to fraction form
    1,565,922.57/2,160,936.39 = 921,384.51/x
  3. Step 3: Cross multiply
    1,565,922.57x = 2,160,936.39 × 921,384.51
  4. Step 4: Simplify right side
    1,565,922.57x = 1,991,053,316,841.32
  5. Step 5: Solve for x
    x = 1,991,053,316,841.32/1,565,922.57
  6. Step 6: Final answer
    x = 1,271,489.00

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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.