Home / 915,335.86-1,263,163.45-507,436.67

Finding the Fourth Proportional to 915,335.86, 1,263,163.45 and 507,436.67

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Solution

The fourth proportional to 915,335.86, 1,263,163.45 and 507,436.67 is: 700,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,335.86 : 1,263,163.45 = 507,436.67 : x
  2. Step 2: Convert to fraction form
    915,335.86/1,263,163.45 = 507,436.67/x
  3. Step 3: Cross multiply
    915,335.86x = 1,263,163.45 × 507,436.67
  4. Step 4: Simplify right side
    915,335.86x = 640,975,454,733.71
  5. Step 5: Solve for x
    x = 640,975,454,733.71/915,335.86
  6. Step 6: Final answer
    x = 700,262.58

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Double scale
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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.