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Finding the Fourth Proportional to 656,637.99, 906,148.31 and 370,158.32

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Solution

The fourth proportional to 656,637.99, 906,148.31 and 370,158.32 is: 510,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,637.99 : 906,148.31 = 370,158.32 : x
  2. Step 2: Convert to fraction form
    656,637.99/906,148.31 = 370,158.32/x
  3. Step 3: Cross multiply
    656,637.99x = 906,148.31 × 370,158.32
  4. Step 4: Simplify right side
    656,637.99x = 335,418,329,718.91
  5. Step 5: Solve for x
    x = 335,418,329,718.91/656,637.99
  6. Step 6: Final answer
    x = 510,811.64

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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.