Home / 1,792,330.40-2,688,970.80-781,018.40

Finding the Fourth Proportional to 1,792,330.40, 2,688,970.80 and 781,018.40

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Solution

The fourth proportional to 1,792,330.40, 2,688,970.80 and 781,018.40 is: 1,171,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792,330.40 : 2,688,970.80 = 781,018.40 : x
  2. Step 2: Convert to fraction form
    1,792,330.40/2,688,970.80 = 781,018.40/x
  3. Step 3: Cross multiply
    1,792,330.40x = 2,688,970.80 × 781,018.40
  4. Step 4: Simplify right side
    1,792,330.40x = 2,100,135,671,862.72
  5. Step 5: Solve for x
    x = 2,100,135,671,862.72/1,792,330.40
  6. Step 6: Final answer
    x = 1,171,734.67

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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.