Home / 510,521.40-705,491.10-382,975.56

Finding the Fourth Proportional to 510,521.40, 705,491.10 and 382,975.56

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Solution

The fourth proportional to 510,521.40, 705,491.10 and 382,975.56 is: 529,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,521.40 : 705,491.10 = 382,975.56 : x
  2. Step 2: Convert to fraction form
    510,521.40/705,491.10 = 382,975.56/x
  3. Step 3: Cross multiply
    510,521.40x = 705,491.10 × 382,975.56
  4. Step 4: Simplify right side
    510,521.40x = 270,185,849,097.52
  5. Step 5: Solve for x
    x = 270,185,849,097.52/510,521.40
  6. Step 6: Final answer
    x = 529,235.11

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1.5x scale

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.