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Finding the Fourth Proportional to 660,547.73, 911,612.09 and 374,118.77

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Solution

The fourth proportional to 660,547.73, 911,612.09 and 374,118.77 is: 516,315.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,547.73 : 911,612.09 = 374,118.77 : x
  2. Step 2: Convert to fraction form
    660,547.73/911,612.09 = 374,118.77/x
  3. Step 3: Cross multiply
    660,547.73x = 911,612.09 × 374,118.77
  4. Step 4: Simplify right side
    660,547.73x = 341,051,193,827.93
  5. Step 5: Solve for x
    x = 341,051,193,827.93/660,547.73
  6. Step 6: Final answer
    x = 516,315.75

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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.