Home / 830,047.28-1,145,495.80-462,557.44

Finding the Fourth Proportional to 830,047.28, 1,145,495.80 and 462,557.44

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Solution

The fourth proportional to 830,047.28, 1,145,495.80 and 462,557.44 is: 638,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,047.28 : 1,145,495.80 = 462,557.44 : x
  2. Step 2: Convert to fraction form
    830,047.28/1,145,495.80 = 462,557.44/x
  3. Step 3: Cross multiply
    830,047.28x = 1,145,495.80 × 462,557.44
  4. Step 4: Simplify right side
    830,047.28x = 529,857,604,778.75
  5. Step 5: Solve for x
    x = 529,857,604,778.75/830,047.28
  6. Step 6: Final answer
    x = 638,346.29

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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.