Home / 870,322.37-1,299,527.28-779,780.57

Finding the Fourth Proportional to 870,322.37, 1,299,527.28 and 779,780.57

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Solution

The fourth proportional to 870,322.37, 1,299,527.28 and 779,780.57 is: 1,164,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,322.37 : 1,299,527.28 = 779,780.57 : x
  2. Step 2: Convert to fraction form
    870,322.37/1,299,527.28 = 779,780.57/x
  3. Step 3: Cross multiply
    870,322.37x = 1,299,527.28 × 779,780.57
  4. Step 4: Simplify right side
    870,322.37x = 1,013,346,116,631.31
  5. Step 5: Solve for x
    x = 1,013,346,116,631.31/870,322.37
  6. Step 6: Final answer
    x = 1,164,334.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.