Home / 742,378.88-1,024,485.60-402,847.04

Finding the Fourth Proportional to 742,378.88, 1,024,485.60 and 402,847.04

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Solution

The fourth proportional to 742,378.88, 1,024,485.60 and 402,847.04 is: 555,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,378.88 : 1,024,485.60 = 402,847.04 : x
  2. Step 2: Convert to fraction form
    742,378.88/1,024,485.60 = 402,847.04/x
  3. Step 3: Cross multiply
    742,378.88x = 1,024,485.60 × 402,847.04
  4. Step 4: Simplify right side
    742,378.88x = 412,710,991,482.62
  5. Step 5: Solve for x
    x = 412,710,991,482.62/742,378.88
  6. Step 6: Final answer
    x = 555,930.41

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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.