Home / 456,841.76-630,450-255,637.28

Finding the Fourth Proportional to 456,841.76, 630,450 and 255,637.28

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Solution

The fourth proportional to 456,841.76, 630,450 and 255,637.28 is: 352,784.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,841.76 : 630,450 = 255,637.28 : x
  2. Step 2: Convert to fraction form
    456,841.76/630,450 = 255,637.28/x
  3. Step 3: Cross multiply
    456,841.76x = 630,450 × 255,637.28
  4. Step 4: Simplify right side
    456,841.76x = 161,166,523,176
  5. Step 5: Solve for x
    x = 161,166,523,176/456,841.76
  6. Step 6: Final answer
    x = 352,784.13

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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.