Home / 1,282,607.80-1,921,838.10-808,444.60

Finding the Fourth Proportional to 1,282,607.80, 1,921,838.10 and 808,444.60

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Solution

The fourth proportional to 1,282,607.80, 1,921,838.10 and 808,444.60 is: 1,211,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,607.80 : 1,921,838.10 = 808,444.60 : x
  2. Step 2: Convert to fraction form
    1,282,607.80/1,921,838.10 = 808,444.60/x
  3. Step 3: Cross multiply
    1,282,607.80x = 1,921,838.10 × 808,444.60
  4. Step 4: Simplify right side
    1,282,607.80x = 1,553,699,634,019.26
  5. Step 5: Solve for x
    x = 1,553,699,634,019.26/1,282,607.80
  6. Step 6: Final answer
    x = 1,211,359.88

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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.