Home / 915,394.70-1,263,319.52-507,624.44

Finding the Fourth Proportional to 915,394.70, 1,263,319.52 and 507,624.44

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Solution

The fourth proportional to 915,394.70, 1,263,319.52 and 507,624.44 is: 700,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,394.70 : 1,263,319.52 = 507,624.44 : x
  2. Step 2: Convert to fraction form
    915,394.70/1,263,319.52 = 507,624.44/x
  3. Step 3: Cross multiply
    915,394.70x = 1,263,319.52 × 507,624.44
  4. Step 4: Simplify right side
    915,394.70x = 641,291,855,026.35
  5. Step 5: Solve for x
    x = 641,291,855,026.35/915,394.70
  6. Step 6: Final answer
    x = 700,563.22

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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.