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Finding the Fourth Proportional to 1,184,398.80, 1,773,973.80 and 917,293.20

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Solution

The fourth proportional to 1,184,398.80, 1,773,973.80 and 917,293.20 is: 1,373,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,398.80 : 1,773,973.80 = 917,293.20 : x
  2. Step 2: Convert to fraction form
    1,184,398.80/1,773,973.80 = 917,293.20/x
  3. Step 3: Cross multiply
    1,184,398.80x = 1,773,973.80 × 917,293.20
  4. Step 4: Simplify right side
    1,184,398.80x = 1,627,254,103,718.16
  5. Step 5: Solve for x
    x = 1,627,254,103,718.16/1,184,398.80
  6. Step 6: Final answer
    x = 1,373,907.25

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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.