Home / 911,009.18-1,366,366.10-405,451.32

Finding the Fourth Proportional to 911,009.18, 1,366,366.10 and 405,451.32

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Solution

The fourth proportional to 911,009.18, 1,366,366.10 and 405,451.32 is: 608,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,009.18 : 1,366,366.10 = 405,451.32 : x
  2. Step 2: Convert to fraction form
    911,009.18/1,366,366.10 = 405,451.32/x
  3. Step 3: Cross multiply
    911,009.18x = 1,366,366.10 × 405,451.32
  4. Step 4: Simplify right side
    911,009.18x = 553,994,938,848.25
  5. Step 5: Solve for x
    x = 553,994,938,848.25/911,009.18
  6. Step 6: Final answer
    x = 608,111.26

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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.