Home / 847,466.76-1,271,032.38-420,557.16

Finding the Fourth Proportional to 847,466.76, 1,271,032.38 and 420,557.16

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Solution

The fourth proportional to 847,466.76, 1,271,032.38 and 420,557.16 is: 630,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,466.76 : 1,271,032.38 = 420,557.16 : x
  2. Step 2: Convert to fraction form
    847,466.76/1,271,032.38 = 420,557.16/x
  3. Step 3: Cross multiply
    847,466.76x = 1,271,032.38 × 420,557.16
  4. Step 4: Simplify right side
    847,466.76x = 534,541,768,000.84
  5. Step 5: Solve for x
    x = 534,541,768,000.84/847,466.76
  6. Step 6: Final answer
    x = 630,752.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.