Home / 1,689,143.83-2,533,715.74-426,971.45

Finding the Fourth Proportional to 1,689,143.83, 2,533,715.74 and 426,971.45

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Solution

The fourth proportional to 1,689,143.83, 2,533,715.74 and 426,971.45 is: 640,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,143.83 : 2,533,715.74 = 426,971.45 : x
  2. Step 2: Convert to fraction form
    1,689,143.83/2,533,715.74 = 426,971.45/x
  3. Step 3: Cross multiply
    1,689,143.83x = 2,533,715.74 × 426,971.45
  4. Step 4: Simplify right side
    1,689,143.83x = 1,081,824,290,263.63
  5. Step 5: Solve for x
    x = 1,081,824,290,263.63/1,689,143.83
  6. Step 6: Final answer
    x = 640,457.18

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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.