Home / 915,416.16-1,263,349.16-507,645.91

Finding the Fourth Proportional to 915,416.16, 1,263,349.16 and 507,645.91

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Solution

The fourth proportional to 915,416.16, 1,263,349.16 and 507,645.91 is: 700,592.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,416.16 : 1,263,349.16 = 507,645.91 : x
  2. Step 2: Convert to fraction form
    915,416.16/1,263,349.16 = 507,645.91/x
  3. Step 3: Cross multiply
    915,416.16x = 1,263,349.16 × 507,645.91
  4. Step 4: Simplify right side
    915,416.16x = 641,334,033,975.94
  5. Step 5: Solve for x
    x = 641,334,033,975.94/915,416.16
  6. Step 6: Final answer
    x = 700,592.87

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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.