Home / 953,787.40-1,430,243.70-421,034.20

Finding the Fourth Proportional to 953,787.40, 1,430,243.70 and 421,034.20

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Solution

The fourth proportional to 953,787.40, 1,430,243.70 and 421,034.20 is: 631,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,787.40 : 1,430,243.70 = 421,034.20 : x
  2. Step 2: Convert to fraction form
    953,787.40/1,430,243.70 = 421,034.20/x
  3. Step 3: Cross multiply
    953,787.40x = 1,430,243.70 × 421,034.20
  4. Step 4: Simplify right side
    953,787.40x = 602,181,512,034.54
  5. Step 5: Solve for x
    x = 602,181,512,034.54/953,787.40
  6. Step 6: Final answer
    x = 631,358.22

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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.