Home / 776,870.14-1,072,134.69-470,959.41

Finding the Fourth Proportional to 776,870.14, 1,072,134.69 and 470,959.41

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Solution

The fourth proportional to 776,870.14, 1,072,134.69 and 470,959.41 is: 649,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,870.14 : 1,072,134.69 = 470,959.41 : x
  2. Step 2: Convert to fraction form
    776,870.14/1,072,134.69 = 470,959.41/x
  3. Step 3: Cross multiply
    776,870.14x = 1,072,134.69 × 470,959.41
  4. Step 4: Simplify right side
    776,870.14x = 504,931,921,042.93
  5. Step 5: Solve for x
    x = 504,931,921,042.93/776,870.14
  6. Step 6: Final answer
    x = 649,956.66

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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.