Home / 830,672.30-1,246,008.45-511,807.70

Finding the Fourth Proportional to 830,672.30, 1,246,008.45 and 511,807.70

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Solution

The fourth proportional to 830,672.30, 1,246,008.45 and 511,807.70 is: 767,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,672.30 : 1,246,008.45 = 511,807.70 : x
  2. Step 2: Convert to fraction form
    830,672.30/1,246,008.45 = 511,807.70/x
  3. Step 3: Cross multiply
    830,672.30x = 1,246,008.45 × 511,807.70
  4. Step 4: Simplify right side
    830,672.30x = 637,716,718,975.07
  5. Step 5: Solve for x
    x = 637,716,718,975.07/830,672.30
  6. Step 6: Final answer
    x = 767,711.55

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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.