Home / 1,263,916.60-1,896,134.10-423,071.80

Finding the Fourth Proportional to 1,263,916.60, 1,896,134.10 and 423,071.80

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Solution

The fourth proportional to 1,263,916.60, 1,896,134.10 and 423,071.80 is: 634,694.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,916.60 : 1,896,134.10 = 423,071.80 : x
  2. Step 2: Convert to fraction form
    1,263,916.60/1,896,134.10 = 423,071.80/x
  3. Step 3: Cross multiply
    1,263,916.60x = 1,896,134.10 × 423,071.80
  4. Step 4: Simplify right side
    1,263,916.60x = 802,200,866,728.38
  5. Step 5: Solve for x
    x = 802,200,866,728.38/1,263,916.60
  6. Step 6: Final answer
    x = 634,694.46

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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.