Home / 912,002.64-1,368,150.96-280,916.16

Finding the Fourth Proportional to 912,002.64, 1,368,150.96 and 280,916.16

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Solution

The fourth proportional to 912,002.64, 1,368,150.96 and 280,916.16 is: 421,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,002.64 : 1,368,150.96 = 280,916.16 : x
  2. Step 2: Convert to fraction form
    912,002.64/1,368,150.96 = 280,916.16/x
  3. Step 3: Cross multiply
    912,002.64x = 1,368,150.96 × 280,916.16
  4. Step 4: Simplify right side
    912,002.64x = 384,335,713,983.51
  5. Step 5: Solve for x
    x = 384,335,713,983.51/912,002.64
  6. Step 6: Final answer
    x = 421,419.52

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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.