Home / 740,703.15-1,111,091.18-386,409.15

Finding the Fourth Proportional to 740,703.15, 1,111,091.18 and 386,409.15

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Solution

The fourth proportional to 740,703.15, 1,111,091.18 and 386,409.15 is: 579,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,703.15 : 1,111,091.18 = 386,409.15 : x
  2. Step 2: Convert to fraction form
    740,703.15/1,111,091.18 = 386,409.15/x
  3. Step 3: Cross multiply
    740,703.15x = 1,111,091.18 × 386,409.15
  4. Step 4: Simplify right side
    740,703.15x = 429,335,796,504.25
  5. Step 5: Solve for x
    x = 429,335,796,504.25/740,703.15
  6. Step 6: Final answer
    x = 579,632.74

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1.5x scale

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.