Home / 514,782.80-771,814.20-304,312.40

Finding the Fourth Proportional to 514,782.80, 771,814.20 and 304,312.40

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Solution

The fourth proportional to 514,782.80, 771,814.20 and 304,312.40 is: 456,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,782.80 : 771,814.20 = 304,312.40 : x
  2. Step 2: Convert to fraction form
    514,782.80/771,814.20 = 304,312.40/x
  3. Step 3: Cross multiply
    514,782.80x = 771,814.20 × 304,312.40
  4. Step 4: Simplify right side
    514,782.80x = 234,872,631,556.08
  5. Step 5: Solve for x
    x = 234,872,631,556.08/514,782.80
  6. Step 6: Final answer
    x = 456,255.79

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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.