Home / 915,127.80-1,262,952-507,357.60

Finding the Fourth Proportional to 915,127.80, 1,262,952 and 507,357.60

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Solution

The fourth proportional to 915,127.80, 1,262,952 and 507,357.60 is: 700,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,127.80 : 1,262,952 = 507,357.60 : x
  2. Step 2: Convert to fraction form
    915,127.80/1,262,952 = 507,357.60/x
  3. Step 3: Cross multiply
    915,127.80x = 1,262,952 × 507,357.60
  4. Step 4: Simplify right side
    915,127.80x = 640,768,295,635.20
  5. Step 5: Solve for x
    x = 640,768,295,635.20/915,127.80
  6. Step 6: Final answer
    x = 700,195.42

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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.