Home / 992,634.51-1,488,225.86-318,331.98

Finding the Fourth Proportional to 992,634.51, 1,488,225.86 and 318,331.98

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Solution

The fourth proportional to 992,634.51, 1,488,225.86 and 318,331.98 is: 477,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,634.51 : 1,488,225.86 = 318,331.98 : x
  2. Step 2: Convert to fraction form
    992,634.51/1,488,225.86 = 318,331.98/x
  3. Step 3: Cross multiply
    992,634.51x = 1,488,225.86 × 318,331.98
  4. Step 4: Simplify right side
    992,634.51x = 473,749,883,109.34
  5. Step 5: Solve for x
    x = 473,749,883,109.34/992,634.51
  6. Step 6: Final answer
    x = 477,265.17

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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.