Home / 953,844.40-1,430,329.20-421,091.20

Finding the Fourth Proportional to 953,844.40, 1,430,329.20 and 421,091.20

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Solution

The fourth proportional to 953,844.40, 1,430,329.20 and 421,091.20 is: 631,443.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,844.40 : 1,430,329.20 = 421,091.20 : x
  2. Step 2: Convert to fraction form
    953,844.40/1,430,329.20 = 421,091.20/x
  3. Step 3: Cross multiply
    953,844.40x = 1,430,329.20 × 421,091.20
  4. Step 4: Simplify right side
    953,844.40x = 602,299,039,223.04
  5. Step 5: Solve for x
    x = 602,299,039,223.04/953,844.40
  6. Step 6: Final answer
    x = 631,443.70

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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.