Home / 1,792,328.40-2,688,967.80-781,016.40

Finding the Fourth Proportional to 1,792,328.40, 2,688,967.80 and 781,016.40

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Solution

The fourth proportional to 1,792,328.40, 2,688,967.80 and 781,016.40 is: 1,171,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,328.40 : 2,688,967.80 = 781,016.40 : x
  2. Step 2: Convert to fraction form
    1,792,328.40/2,688,967.80 = 781,016.40/x
  3. Step 3: Cross multiply
    1,792,328.40x = 2,688,967.80 × 781,016.40
  4. Step 4: Simplify right side
    1,792,328.40x = 2,100,127,950,871.92
  5. Step 5: Solve for x
    x = 2,100,127,950,871.92/1,792,328.40
  6. Step 6: Final answer
    x = 1,171,731.67

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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.