Home / 1,020,240.40-1,530,418.20-310,291.60

Finding the Fourth Proportional to 1,020,240.40, 1,530,418.20 and 310,291.60

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Solution

The fourth proportional to 1,020,240.40, 1,530,418.20 and 310,291.60 is: 465,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,240.40 : 1,530,418.20 = 310,291.60 : x
  2. Step 2: Convert to fraction form
    1,020,240.40/1,530,418.20 = 310,291.60/x
  3. Step 3: Cross multiply
    1,020,240.40x = 1,530,418.20 × 310,291.60
  4. Step 4: Simplify right side
    1,020,240.40x = 474,875,911,947.12
  5. Step 5: Solve for x
    x = 474,875,911,947.12/1,020,240.40
  6. Step 6: Final answer
    x = 465,454.92

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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.