Home / 1,020,283.20-1,530,365.76-389,260.80

Finding the Fourth Proportional to 1,020,283.20, 1,530,365.76 and 389,260.80

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Solution

The fourth proportional to 1,020,283.20, 1,530,365.76 and 389,260.80 is: 583,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,283.20 : 1,530,365.76 = 389,260.80 : x
  2. Step 2: Convert to fraction form
    1,020,283.20/1,530,365.76 = 389,260.80/x
  3. Step 3: Cross multiply
    1,020,283.20x = 1,530,365.76 × 389,260.80
  4. Step 4: Simplify right side
    1,020,283.20x = 595,711,400,030.21
  5. Step 5: Solve for x
    x = 595,711,400,030.21/1,020,283.20
  6. Step 6: Final answer
    x = 583,868.67

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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.