Home / 890,389.82-1,228,798.22-503,070.90

Finding the Fourth Proportional to 890,389.82, 1,228,798.22 and 503,070.90

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Solution

The fourth proportional to 890,389.82, 1,228,798.22 and 503,070.90 is: 694,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,389.82 : 1,228,798.22 = 503,070.90 : x
  2. Step 2: Convert to fraction form
    890,389.82/1,228,798.22 = 503,070.90/x
  3. Step 3: Cross multiply
    890,389.82x = 1,228,798.22 × 503,070.90
  4. Step 4: Simplify right side
    890,389.82x = 618,172,630,487.10
  5. Step 5: Solve for x
    x = 618,172,630,487.10/890,389.82
  6. Step 6: Final answer
    x = 694,271.90

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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.