Home / 1,381,294.28-2,072,261.95-434,640.40

Finding the Fourth Proportional to 1,381,294.28, 2,072,261.95 and 434,640.40

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Solution

The fourth proportional to 1,381,294.28, 2,072,261.95 and 434,640.40 is: 652,061.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,294.28 : 2,072,261.95 = 434,640.40 : x
  2. Step 2: Convert to fraction form
    1,381,294.28/2,072,261.95 = 434,640.40/x
  3. Step 3: Cross multiply
    1,381,294.28x = 2,072,261.95 × 434,640.40
  4. Step 4: Simplify right side
    1,381,294.28x = 900,688,762,852.78
  5. Step 5: Solve for x
    x = 900,688,762,852.78/1,381,294.28
  6. Step 6: Final answer
    x = 652,061.46

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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.