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Finding the Fourth Proportional to 506,122.80, 758,309.40 and 328,538.40

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Solution

The fourth proportional to 506,122.80, 758,309.40 and 328,538.40 is: 492,239.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,122.80 : 758,309.40 = 328,538.40 : x
  2. Step 2: Convert to fraction form
    506,122.80/758,309.40 = 328,538.40/x
  3. Step 3: Cross multiply
    506,122.80x = 758,309.40 × 328,538.40
  4. Step 4: Simplify right side
    506,122.80x = 249,133,756,980.96
  5. Step 5: Solve for x
    x = 249,133,756,980.96/506,122.80
  6. Step 6: Final answer
    x = 492,239.74

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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.