Home / 918,089.80-1,377,134.70-705,513.40

Finding the Fourth Proportional to 918,089.80, 1,377,134.70 and 705,513.40

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Solution

The fourth proportional to 918,089.80, 1,377,134.70 and 705,513.40 is: 1,058,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,089.80 : 1,377,134.70 = 705,513.40 : x
  2. Step 2: Convert to fraction form
    918,089.80/1,377,134.70 = 705,513.40/x
  3. Step 3: Cross multiply
    918,089.80x = 1,377,134.70 × 705,513.40
  4. Step 4: Simplify right side
    918,089.80x = 971,586,984,454.98
  5. Step 5: Solve for x
    x = 971,586,984,454.98/918,089.80
  6. Step 6: Final answer
    x = 1,058,270.10

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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.