Home / 385,827.30-577,756.80-307,095.30

Finding the Fourth Proportional to 385,827.30, 577,756.80 and 307,095.30

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Solution

The fourth proportional to 385,827.30, 577,756.80 and 307,095.30 is: 459,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,827.30 : 577,756.80 = 307,095.30 : x
  2. Step 2: Convert to fraction form
    385,827.30/577,756.80 = 307,095.30/x
  3. Step 3: Cross multiply
    385,827.30x = 577,756.80 × 307,095.30
  4. Step 4: Simplify right side
    385,827.30x = 177,426,397,823.04
  5. Step 5: Solve for x
    x = 177,426,397,823.04/385,827.30
  6. Step 6: Final answer
    x = 459,859.63

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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.