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Finding the Fourth Proportional to 456,987.02, 630,641.58 and 255,783.02

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Solution

The fourth proportional to 456,987.02, 630,641.58 and 255,783.02 is: 352,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,987.02 : 630,641.58 = 255,783.02 : x
  2. Step 2: Convert to fraction form
    456,987.02/630,641.58 = 255,783.02/x
  3. Step 3: Cross multiply
    456,987.02x = 630,641.58 × 255,783.02
  4. Step 4: Simplify right side
    456,987.02x = 161,307,407,869.97
  5. Step 5: Solve for x
    x = 161,307,407,869.97/456,987.02
  6. Step 6: Final answer
    x = 352,980.28

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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.