Home / 660,678.16-911,324.58-550,014.40

Finding the Fourth Proportional to 660,678.16, 911,324.58 and 550,014.40

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Solution

The fourth proportional to 660,678.16, 911,324.58 and 550,014.40 is: 758,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,678.16 : 911,324.58 = 550,014.40 : x
  2. Step 2: Convert to fraction form
    660,678.16/911,324.58 = 550,014.40/x
  3. Step 3: Cross multiply
    660,678.16x = 911,324.58 × 550,014.40
  4. Step 4: Simplify right side
    660,678.16x = 501,241,642,073.95
  5. Step 5: Solve for x
    x = 501,241,642,073.95/660,678.16
  6. Step 6: Final answer
    x = 758,677.48

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1.5x scale

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.