Home / 915,639.76-1,263,521.22-507,726.60

Finding the Fourth Proportional to 915,639.76, 1,263,521.22 and 507,726.60

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Solution

The fourth proportional to 915,639.76, 1,263,521.22 and 507,726.60 is: 700,628.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,639.76 : 1,263,521.22 = 507,726.60 : x
  2. Step 2: Convert to fraction form
    915,639.76/1,263,521.22 = 507,726.60/x
  3. Step 3: Cross multiply
    915,639.76x = 1,263,521.22 × 507,726.60
  4. Step 4: Simplify right side
    915,639.76x = 641,523,333,058.45
  5. Step 5: Solve for x
    x = 641,523,333,058.45/915,639.76
  6. Step 6: Final answer
    x = 700,628.52

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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.