Home / 954,302.40-1,431,016.20-421,549.20

Finding the Fourth Proportional to 954,302.40, 1,431,016.20 and 421,549.20

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Solution

The fourth proportional to 954,302.40, 1,431,016.20 and 421,549.20 is: 632,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    954,302.40 : 1,431,016.20 = 421,549.20 : x
  2. Step 2: Convert to fraction form
    954,302.40/1,431,016.20 = 421,549.20/x
  3. Step 3: Cross multiply
    954,302.40x = 1,431,016.20 × 421,549.20
  4. Step 4: Simplify right side
    954,302.40x = 603,243,734,297.04
  5. Step 5: Solve for x
    x = 603,243,734,297.04/954,302.40
  6. Step 6: Final answer
    x = 632,130.58

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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.