Home / 786,938.40-1,182,740.40-684,295.20

Finding the Fourth Proportional to 786,938.40, 1,182,740.40 and 684,295.20

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Solution

The fourth proportional to 786,938.40, 1,182,740.40 and 684,295.20 is: 1,028,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,938.40 : 1,182,740.40 = 684,295.20 : x
  2. Step 2: Convert to fraction form
    786,938.40/1,182,740.40 = 684,295.20/x
  3. Step 3: Cross multiply
    786,938.40x = 1,182,740.40 × 684,295.20
  4. Step 4: Simplify right side
    786,938.40x = 809,343,578,566.08
  5. Step 5: Solve for x
    x = 809,343,578,566.08/786,938.40
  6. Step 6: Final answer
    x = 1,028,471.32

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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.