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Finding the Fourth Proportional to 554,510.82, 765,222.12 and 299,861.40

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Solution

The fourth proportional to 554,510.82, 765,222.12 and 299,861.40 is: 413,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,510.82 : 765,222.12 = 299,861.40 : x
  2. Step 2: Convert to fraction form
    554,510.82/765,222.12 = 299,861.40/x
  3. Step 3: Cross multiply
    554,510.82x = 765,222.12 × 299,861.40
  4. Step 4: Simplify right side
    554,510.82x = 229,460,576,214.17
  5. Step 5: Solve for x
    x = 229,460,576,214.17/554,510.82
  6. Step 6: Final answer
    x = 413,807.21

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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.