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Finding the Fourth Proportional to 579,506.40, 869,259.60 and 547,029.45

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Solution

The fourth proportional to 579,506.40, 869,259.60 and 547,029.45 is: 820,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,506.40 : 869,259.60 = 547,029.45 : x
  2. Step 2: Convert to fraction form
    579,506.40/869,259.60 = 547,029.45/x
  3. Step 3: Cross multiply
    579,506.40x = 869,259.60 × 547,029.45
  4. Step 4: Simplify right side
    579,506.40x = 475,510,600,895.22
  5. Step 5: Solve for x
    x = 475,510,600,895.22/579,506.40
  6. Step 6: Final answer
    x = 820,544.18

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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.