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Finding the Fourth Proportional to 631,030.02, 870,856.71 and 344,576.70

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Solution

The fourth proportional to 631,030.02, 870,856.71 and 344,576.70 is: 475,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,030.02 : 870,856.71 = 344,576.70 : x
  2. Step 2: Convert to fraction form
    631,030.02/870,856.71 = 344,576.70/x
  3. Step 3: Cross multiply
    631,030.02x = 870,856.71 × 344,576.70
  4. Step 4: Simplify right side
    631,030.02x = 300,076,931,304.66
  5. Step 5: Solve for x
    x = 300,076,931,304.66/631,030.02
  6. Step 6: Final answer
    x = 475,535.11

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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.