Home / 527,020.65-727,288.35-285,303.05

Finding the Fourth Proportional to 527,020.65, 727,288.35 and 285,303.05

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Solution

The fourth proportional to 527,020.65, 727,288.35 and 285,303.05 is: 393,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,020.65 : 727,288.35 = 285,303.05 : x
  2. Step 2: Convert to fraction form
    527,020.65/727,288.35 = 285,303.05/x
  3. Step 3: Cross multiply
    527,020.65x = 727,288.35 × 285,303.05
  4. Step 4: Simplify right side
    527,020.65x = 207,497,584,484.47
  5. Step 5: Solve for x
    x = 207,497,584,484.47/527,020.65
  6. Step 6: Final answer
    x = 393,718.13

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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.