Home / 1,549,172.76-2,138,058.88-870,109.24

Finding the Fourth Proportional to 1,549,172.76, 2,138,058.88 and 870,109.24

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Solution

The fourth proportional to 1,549,172.76, 2,138,058.88 and 870,109.24 is: 1,200,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,172.76 : 2,138,058.88 = 870,109.24 : x
  2. Step 2: Convert to fraction form
    1,549,172.76/2,138,058.88 = 870,109.24/x
  3. Step 3: Cross multiply
    1,549,172.76x = 2,138,058.88 × 870,109.24
  4. Step 4: Simplify right side
    1,549,172.76x = 1,860,344,787,152.05
  5. Step 5: Solve for x
    x = 1,860,344,787,152.05/1,549,172.76
  6. Step 6: Final answer
    x = 1,200,863.35

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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.