Home / 1,985,220.70-2,977,831.05-489,312.70

Finding the Fourth Proportional to 1,985,220.70, 2,977,831.05 and 489,312.70

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Solution

The fourth proportional to 1,985,220.70, 2,977,831.05 and 489,312.70 is: 733,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,220.70 : 2,977,831.05 = 489,312.70 : x
  2. Step 2: Convert to fraction form
    1,985,220.70/2,977,831.05 = 489,312.70/x
  3. Step 3: Cross multiply
    1,985,220.70x = 2,977,831.05 × 489,312.70
  4. Step 4: Simplify right side
    1,985,220.70x = 1,457,090,551,219.34
  5. Step 5: Solve for x
    x = 1,457,090,551,219.34/1,985,220.70
  6. Step 6: Final answer
    x = 733,969.05

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Double scale
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Similar ratio
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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.