Home / 830,047.20-1,242,203.60-497,861.60

Finding the Fourth Proportional to 830,047.20, 1,242,203.60 and 497,861.60

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Solution

The fourth proportional to 830,047.20, 1,242,203.60 and 497,861.60 is: 745,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,047.20 : 1,242,203.60 = 497,861.60 : x
  2. Step 2: Convert to fraction form
    830,047.20/1,242,203.60 = 497,861.60/x
  3. Step 3: Cross multiply
    830,047.20x = 1,242,203.60 × 497,861.60
  4. Step 4: Simplify right side
    830,047.20x = 618,445,471,821.76
  5. Step 5: Solve for x
    x = 618,445,471,821.76/830,047.20
  6. Step 6: Final answer
    x = 745,072.66

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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.