Home / 815,420.76-1,124,888.22-529,030.68

Finding the Fourth Proportional to 815,420.76, 1,124,888.22 and 529,030.68

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Solution

The fourth proportional to 815,420.76, 1,124,888.22 and 529,030.68 is: 729,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,420.76 : 1,124,888.22 = 529,030.68 : x
  2. Step 2: Convert to fraction form
    815,420.76/1,124,888.22 = 529,030.68/x
  3. Step 3: Cross multiply
    815,420.76x = 1,124,888.22 × 529,030.68
  4. Step 4: Simplify right side
    815,420.76x = 595,100,379,950.59
  5. Step 5: Solve for x
    x = 595,100,379,950.59/815,420.76
  6. Step 6: Final answer
    x = 729,807.74

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Double scale
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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.