Home / 649,312.40-973,306.20-438,971.60

Finding the Fourth Proportional to 649,312.40, 973,306.20 and 438,971.60

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Solution

The fourth proportional to 649,312.40, 973,306.20 and 438,971.60 is: 658,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,312.40 : 973,306.20 = 438,971.60 : x
  2. Step 2: Convert to fraction form
    649,312.40/973,306.20 = 438,971.60/x
  3. Step 3: Cross multiply
    649,312.40x = 973,306.20 × 438,971.60
  4. Step 4: Simplify right side
    649,312.40x = 427,253,779,903.92
  5. Step 5: Solve for x
    x = 427,253,779,903.92/649,312.40
  6. Step 6: Final answer
    x = 658,009.58

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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.