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Finding the Fourth Proportional to 520,251.51, 718,038.45 and 302,527.56

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Solution

The fourth proportional to 520,251.51, 718,038.45 and 302,527.56 is: 417,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,251.51 : 718,038.45 = 302,527.56 : x
  2. Step 2: Convert to fraction form
    520,251.51/718,038.45 = 302,527.56/x
  3. Step 3: Cross multiply
    520,251.51x = 718,038.45 × 302,527.56
  4. Step 4: Simplify right side
    520,251.51x = 217,226,418,752.04
  5. Step 5: Solve for x
    x = 217,226,418,752.04/520,251.51
  6. Step 6: Final answer
    x = 417,541.16

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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.