Home / 1,920,157.38-2,880,225.60-782,915.16

Finding the Fourth Proportional to 1,920,157.38, 2,880,225.60 and 782,915.16

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Solution

The fourth proportional to 1,920,157.38, 2,880,225.60 and 782,915.16 is: 1,174,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,157.38 : 2,880,225.60 = 782,915.16 : x
  2. Step 2: Convert to fraction form
    1,920,157.38/2,880,225.60 = 782,915.16/x
  3. Step 3: Cross multiply
    1,920,157.38x = 2,880,225.60 × 782,915.16
  4. Step 4: Simplify right side
    1,920,157.38x = 2,254,972,286,460.10
  5. Step 5: Solve for x
    x = 2,254,972,286,460.10/1,920,157.38
  6. Step 6: Final answer
    x = 1,174,368.47

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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.