Home / 915,580.18-1,263,503.37-507,710.76

Finding the Fourth Proportional to 915,580.18, 1,263,503.37 and 507,710.76

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Solution

The fourth proportional to 915,580.18, 1,263,503.37 and 507,710.76 is: 700,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,580.18 : 1,263,503.37 = 507,710.76 : x
  2. Step 2: Convert to fraction form
    915,580.18/1,263,503.37 = 507,710.76/x
  3. Step 3: Cross multiply
    915,580.18x = 1,263,503.37 × 507,710.76
  4. Step 4: Simplify right side
    915,580.18x = 641,494,256,245.26
  5. Step 5: Solve for x
    x = 641,494,256,245.26/915,580.18
  6. Step 6: Final answer
    x = 700,642.36

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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.