Home / 830,364.66-1,145,666.16-467,661.65

Finding the Fourth Proportional to 830,364.66, 1,145,666.16 and 467,661.65

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Solution

The fourth proportional to 830,364.66, 1,145,666.16 and 467,661.65 is: 645,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,364.66 : 1,145,666.16 = 467,661.65 : x
  2. Step 2: Convert to fraction form
    830,364.66/1,145,666.16 = 467,661.65/x
  3. Step 3: Cross multiply
    830,364.66x = 1,145,666.16 × 467,661.65
  4. Step 4: Simplify right side
    830,364.66x = 535,784,121,006.43
  5. Step 5: Solve for x
    x = 535,784,121,006.43/830,364.66
  6. Step 6: Final answer
    x = 645,239.55

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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.