Home / 1,549,207.02-2,138,105.79-870,143.52

Finding the Fourth Proportional to 1,549,207.02, 2,138,105.79 and 870,143.52

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Solution

The fourth proportional to 1,549,207.02, 2,138,105.79 and 870,143.52 is: 1,200,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,207.02 : 2,138,105.79 = 870,143.52 : x
  2. Step 2: Convert to fraction form
    1,549,207.02/2,138,105.79 = 870,143.52/x
  3. Step 3: Cross multiply
    1,549,207.02x = 2,138,105.79 × 870,143.52
  4. Step 4: Simplify right side
    1,549,207.02x = 1,860,458,898,242.98
  5. Step 5: Solve for x
    x = 1,860,458,898,242.98/1,549,207.02
  6. Step 6: Final answer
    x = 1,200,910.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.