Home / 919,973.80-1,379,960.70-470,545.30

Finding the Fourth Proportional to 919,973.80, 1,379,960.70 and 470,545.30

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Solution

The fourth proportional to 919,973.80, 1,379,960.70 and 470,545.30 is: 705,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,973.80 : 1,379,960.70 = 470,545.30 : x
  2. Step 2: Convert to fraction form
    919,973.80/1,379,960.70 = 470,545.30/x
  3. Step 3: Cross multiply
    919,973.80x = 1,379,960.70 × 470,545.30
  4. Step 4: Simplify right side
    919,973.80x = 649,334,021,569.71
  5. Step 5: Solve for x
    x = 649,334,021,569.71/919,973.80
  6. Step 6: Final answer
    x = 705,817.95

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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.