Home / 839,470.81-1,158,510.78-472,063.57

Finding the Fourth Proportional to 839,470.81, 1,158,510.78 and 472,063.57

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Solution

The fourth proportional to 839,470.81, 1,158,510.78 and 472,063.57 is: 651,470.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,470.81 : 1,158,510.78 = 472,063.57 : x
  2. Step 2: Convert to fraction form
    839,470.81/1,158,510.78 = 472,063.57/x
  3. Step 3: Cross multiply
    839,470.81x = 1,158,510.78 × 472,063.57
  4. Step 4: Simplify right side
    839,470.81x = 546,890,731,794.01
  5. Step 5: Solve for x
    x = 546,890,731,794.01/839,470.81
  6. Step 6: Final answer
    x = 651,470.82

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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.