Home / 1,070,363.70-1,605,545.55-860,411.70

Finding the Fourth Proportional to 1,070,363.70, 1,605,545.55 and 860,411.70

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Solution

The fourth proportional to 1,070,363.70, 1,605,545.55 and 860,411.70 is: 1,290,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,363.70 : 1,605,545.55 = 860,411.70 : x
  2. Step 2: Convert to fraction form
    1,070,363.70/1,605,545.55 = 860,411.70/x
  3. Step 3: Cross multiply
    1,070,363.70x = 1,605,545.55 × 860,411.70
  4. Step 4: Simplify right side
    1,070,363.70x = 1,381,430,176,102.94
  5. Step 5: Solve for x
    x = 1,381,430,176,102.94/1,070,363.70
  6. Step 6: Final answer
    x = 1,290,617.55

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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.