Home / 1,292,088.16-1,938,438.96-405,624.16

Finding the Fourth Proportional to 1,292,088.16, 1,938,438.96 and 405,624.16

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Solution

The fourth proportional to 1,292,088.16, 1,938,438.96 and 405,624.16 is: 608,532.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,088.16 : 1,938,438.96 = 405,624.16 : x
  2. Step 2: Convert to fraction form
    1,292,088.16/1,938,438.96 = 405,624.16/x
  3. Step 3: Cross multiply
    1,292,088.16x = 1,938,438.96 × 405,624.16
  4. Step 4: Simplify right side
    1,292,088.16x = 786,277,674,861.27
  5. Step 5: Solve for x
    x = 786,277,674,861.27/1,292,088.16
  6. Step 6: Final answer
    x = 608,532.53

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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.