Home / 459,529.80-689,813.10-272,646.60

Finding the Fourth Proportional to 459,529.80, 689,813.10 and 272,646.60

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Solution

The fourth proportional to 459,529.80, 689,813.10 and 272,646.60 is: 409,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,529.80 : 689,813.10 = 272,646.60 : x
  2. Step 2: Convert to fraction form
    459,529.80/689,813.10 = 272,646.60/x
  3. Step 3: Cross multiply
    459,529.80x = 689,813.10 × 272,646.60
  4. Step 4: Simplify right side
    459,529.80x = 188,075,196,350.46
  5. Step 5: Solve for x
    x = 188,075,196,350.46/459,529.80
  6. Step 6: Final answer
    x = 409,277.48

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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.