Home / 656,946.10-906,585.24-355,140.10

Finding the Fourth Proportional to 656,946.10, 906,585.24 and 355,140.10

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Solution

The fourth proportional to 656,946.10, 906,585.24 and 355,140.10 is: 490,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,946.10 : 906,585.24 = 355,140.10 : x
  2. Step 2: Convert to fraction form
    656,946.10/906,585.24 = 355,140.10/x
  3. Step 3: Cross multiply
    656,946.10x = 906,585.24 × 355,140.10
  4. Step 4: Simplify right side
    656,946.10x = 321,964,772,792.12
  5. Step 5: Solve for x
    x = 321,964,772,792.12/656,946.10
  6. Step 6: Final answer
    x = 490,093.13

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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.