Home / 385,869.79-578,826.57-119,668.15

Finding the Fourth Proportional to 385,869.79, 578,826.57 and 119,668.15

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Solution

The fourth proportional to 385,869.79, 578,826.57 and 119,668.15 is: 179,509.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,869.79 : 578,826.57 = 119,668.15 : x
  2. Step 2: Convert to fraction form
    385,869.79/578,826.57 = 119,668.15/x
  3. Step 3: Cross multiply
    385,869.79x = 578,826.57 × 119,668.15
  4. Step 4: Simplify right side
    385,869.79x = 69,267,104,802.75
  5. Step 5: Solve for x
    x = 69,267,104,802.75/385,869.79
  6. Step 6: Final answer
    x = 179,509.01

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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.