Home / 992,623.45-1,488,209.37-318,320.95

Finding the Fourth Proportional to 992,623.45, 1,488,209.37 and 318,320.95

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Solution

The fourth proportional to 992,623.45, 1,488,209.37 and 318,320.95 is: 477,248.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,623.45 : 1,488,209.37 = 318,320.95 : x
  2. Step 2: Convert to fraction form
    992,623.45/1,488,209.37 = 318,320.95/x
  3. Step 3: Cross multiply
    992,623.45x = 1,488,209.37 × 318,320.95
  4. Step 4: Simplify right side
    992,623.45x = 473,728,220,457.30
  5. Step 5: Solve for x
    x = 473,728,220,457.30/992,623.45
  6. Step 6: Final answer
    x = 477,248.67

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1.5x scale

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.