Home / 989,861.80-1,484,792.70-877,668.70

Finding the Fourth Proportional to 989,861.80, 1,484,792.70 and 877,668.70

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Solution

The fourth proportional to 989,861.80, 1,484,792.70 and 877,668.70 is: 1,316,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,861.80 : 1,484,792.70 = 877,668.70 : x
  2. Step 2: Convert to fraction form
    989,861.80/1,484,792.70 = 877,668.70/x
  3. Step 3: Cross multiply
    989,861.80x = 1,484,792.70 × 877,668.70
  4. Step 4: Simplify right side
    989,861.80x = 1,303,156,078,778.49
  5. Step 5: Solve for x
    x = 1,303,156,078,778.49/989,861.80
  6. Step 6: Final answer
    x = 1,316,503.05

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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.