Home / 914,401.80-1,373,157.90-678,011.40

Finding the Fourth Proportional to 914,401.80, 1,373,157.90 and 678,011.40

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Solution

The fourth proportional to 914,401.80, 1,373,157.90 and 678,011.40 is: 1,018,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,401.80 : 1,373,157.90 = 678,011.40 : x
  2. Step 2: Convert to fraction form
    914,401.80/1,373,157.90 = 678,011.40/x
  3. Step 3: Cross multiply
    914,401.80x = 1,373,157.90 × 678,011.40
  4. Step 4: Simplify right side
    914,401.80x = 931,016,710,200.06
  5. Step 5: Solve for x
    x = 931,016,710,200.06/914,401.80
  6. Step 6: Final answer
    x = 1,018,170.25

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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.