Home / 915,521.14-1,263,549.90-507,713.68

Finding the Fourth Proportional to 915,521.14, 1,263,549.90 and 507,713.68

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Solution

The fourth proportional to 915,521.14, 1,263,549.90 and 507,713.68 is: 700,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,521.14 : 1,263,549.90 = 507,713.68 : x
  2. Step 2: Convert to fraction form
    915,521.14/1,263,549.90 = 507,713.68/x
  3. Step 3: Cross multiply
    915,521.14x = 1,263,549.90 × 507,713.68
  4. Step 4: Simplify right side
    915,521.14x = 641,521,569,592.63
  5. Step 5: Solve for x
    x = 641,521,569,592.63/915,521.14
  6. Step 6: Final answer
    x = 700,717.37

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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.