Home / 1,525,851.92-2,105,017.80-921,890

Finding the Fourth Proportional to 1,525,851.92, 2,105,017.80 and 921,890

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Solution

The fourth proportional to 1,525,851.92, 2,105,017.80 and 921,890 is: 1,271,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525,851.92 : 2,105,017.80 = 921,890 : x
  2. Step 2: Convert to fraction form
    1,525,851.92/2,105,017.80 = 921,890/x
  3. Step 3: Cross multiply
    1,525,851.92x = 2,105,017.80 × 921,890
  4. Step 4: Simplify right side
    1,525,851.92x = 1,940,594,859,642.00
  5. Step 5: Solve for x
    x = 1,940,594,859,642.00/1,525,851.92
  6. Step 6: Final answer
    x = 1,271,810.74

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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.