Home / 520,704.02-718,282.38-302,888.16

Finding the Fourth Proportional to 520,704.02, 718,282.38 and 302,888.16

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Solution

The fourth proportional to 520,704.02, 718,282.38 and 302,888.16 is: 417,817.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,704.02 : 718,282.38 = 302,888.16 : x
  2. Step 2: Convert to fraction form
    520,704.02/718,282.38 = 302,888.16/x
  3. Step 3: Cross multiply
    520,704.02x = 718,282.38 × 302,888.16
  4. Step 4: Simplify right side
    520,704.02x = 217,559,229,785.40
  5. Step 5: Solve for x
    x = 217,559,229,785.40/520,704.02
  6. Step 6: Final answer
    x = 417,817.45

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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.