Home / 860,157.30-1,289,430.17-291,140.22

Finding the Fourth Proportional to 860,157.30, 1,289,430.17 and 291,140.22

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Solution

The fourth proportional to 860,157.30, 1,289,430.17 and 291,140.22 is: 436,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,157.30 : 1,289,430.17 = 291,140.22 : x
  2. Step 2: Convert to fraction form
    860,157.30/1,289,430.17 = 291,140.22/x
  3. Step 3: Cross multiply
    860,157.30x = 1,289,430.17 × 291,140.22
  4. Step 4: Simplify right side
    860,157.30x = 375,404,984,096.29
  5. Step 5: Solve for x
    x = 375,404,984,096.29/860,157.30
  6. Step 6: Final answer
    x = 436,437.60

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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.