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Finding the Fourth Proportional to 507,270.42, 700,055.19 and 280,915.92

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Solution

The fourth proportional to 507,270.42, 700,055.19 and 280,915.92 is: 387,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,270.42 : 700,055.19 = 280,915.92 : x
  2. Step 2: Convert to fraction form
    507,270.42/700,055.19 = 280,915.92/x
  3. Step 3: Cross multiply
    507,270.42x = 700,055.19 × 280,915.92
  4. Step 4: Simplify right side
    507,270.42x = 196,656,648,535.51
  5. Step 5: Solve for x
    x = 196,656,648,535.51/507,270.42
  6. Step 6: Final answer
    x = 387,676.16

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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.