Home / 915,476.45-1,263,306.91-507,554.48

Finding the Fourth Proportional to 915,476.45, 1,263,306.91 and 507,554.48

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Solution

The fourth proportional to 915,476.45, 1,263,306.91 and 507,554.48 is: 700,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,476.45 : 1,263,306.91 = 507,554.48 : x
  2. Step 2: Convert to fraction form
    915,476.45/1,263,306.91 = 507,554.48/x
  3. Step 3: Cross multiply
    915,476.45x = 1,263,306.91 × 507,554.48
  4. Step 4: Simplify right side
    915,476.45x = 641,197,081,785.46
  5. Step 5: Solve for x
    x = 641,197,081,785.46/915,476.45
  6. Step 6: Final answer
    x = 700,397.13

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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.