Home / 1,020,009.60-1,530,014.40-355,161.60

Finding the Fourth Proportional to 1,020,009.60, 1,530,014.40 and 355,161.60

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Solution

The fourth proportional to 1,020,009.60, 1,530,014.40 and 355,161.60 is: 532,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,009.60 : 1,530,014.40 = 355,161.60 : x
  2. Step 2: Convert to fraction form
    1,020,009.60/1,530,014.40 = 355,161.60/x
  3. Step 3: Cross multiply
    1,020,009.60x = 1,530,014.40 × 355,161.60
  4. Step 4: Simplify right side
    1,020,009.60x = 543,402,362,327.04
  5. Step 5: Solve for x
    x = 543,402,362,327.04/1,020,009.60
  6. Step 6: Final answer
    x = 532,742.40

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Double scale
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Similar ratio
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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.