Home / 1,020,162.80-1,530,827.40-389,529.20

Finding the Fourth Proportional to 1,020,162.80, 1,530,827.40 and 389,529.20

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Solution

The fourth proportional to 1,020,162.80, 1,530,827.40 and 389,529.20 is: 584,516.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,162.80 : 1,530,827.40 = 389,529.20 : x
  2. Step 2: Convert to fraction form
    1,020,162.80/1,530,827.40 = 389,529.20/x
  3. Step 3: Cross multiply
    1,020,162.80x = 1,530,827.40 × 389,529.20
  4. Step 4: Simplify right side
    1,020,162.80x = 596,301,972,460.08
  5. Step 5: Solve for x
    x = 596,301,972,460.08/1,020,162.80
  6. Step 6: Final answer
    x = 584,516.48

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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.