Home / 499,931.94-689,903.28-270,488.64

Finding the Fourth Proportional to 499,931.94, 689,903.28 and 270,488.64

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Solution

The fourth proportional to 499,931.94, 689,903.28 and 270,488.64 is: 373,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,931.94 : 689,903.28 = 270,488.64 : x
  2. Step 2: Convert to fraction form
    499,931.94/689,903.28 = 270,488.64/x
  3. Step 3: Cross multiply
    499,931.94x = 689,903.28 × 270,488.64
  4. Step 4: Simplify right side
    499,931.94x = 186,610,999,938.74
  5. Step 5: Solve for x
    x = 186,610,999,938.74/499,931.94
  6. Step 6: Final answer
    x = 373,272.81

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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.