Home / 648,590.10-973,869.30-498,999.30

Finding the Fourth Proportional to 648,590.10, 973,869.30 and 498,999.30

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Solution

The fourth proportional to 648,590.10, 973,869.30 and 498,999.30 is: 749,256.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,590.10 : 973,869.30 = 498,999.30 : x
  2. Step 2: Convert to fraction form
    648,590.10/973,869.30 = 498,999.30/x
  3. Step 3: Cross multiply
    648,590.10x = 973,869.30 × 498,999.30
  4. Step 4: Simplify right side
    648,590.10x = 485,960,098,991.49
  5. Step 5: Solve for x
    x = 485,960,098,991.49/648,590.10
  6. Step 6: Final answer
    x = 749,256.12

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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.