Home / 698,868.09-1,048,099.43-272,308.77

Finding the Fourth Proportional to 698,868.09, 1,048,099.43 and 272,308.77

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Solution

The fourth proportional to 698,868.09, 1,048,099.43 and 272,308.77 is: 408,384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,868.09 : 1,048,099.43 = 272,308.77 : x
  2. Step 2: Convert to fraction form
    698,868.09/1,048,099.43 = 272,308.77/x
  3. Step 3: Cross multiply
    698,868.09x = 1,048,099.43 × 272,308.77
  4. Step 4: Simplify right side
    698,868.09x = 285,406,665,259.46
  5. Step 5: Solve for x
    x = 285,406,665,259.46/698,868.09
  6. Step 6: Final answer
    x = 408,384.17

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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.