Home / 882,639.86-1,218,003.05-538,421.09

Finding the Fourth Proportional to 882,639.86, 1,218,003.05 and 538,421.09

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Solution

The fourth proportional to 882,639.86, 1,218,003.05 and 538,421.09 is: 742,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,639.86 : 1,218,003.05 = 538,421.09 : x
  2. Step 2: Convert to fraction form
    882,639.86/1,218,003.05 = 538,421.09/x
  3. Step 3: Cross multiply
    882,639.86x = 1,218,003.05 × 538,421.09
  4. Step 4: Simplify right side
    882,639.86x = 655,798,525,060.36
  5. Step 5: Solve for x
    x = 655,798,525,060.36/882,639.86
  6. Step 6: Final answer
    x = 742,996.73

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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.