Home / 1,210,537.53-1,815,128.32-561,417.71

Finding the Fourth Proportional to 1,210,537.53, 1,815,128.32 and 561,417.71

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Solution

The fourth proportional to 1,210,537.53, 1,815,128.32 and 561,417.71 is: 841,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,537.53 : 1,815,128.32 = 561,417.71 : x
  2. Step 2: Convert to fraction form
    1,210,537.53/1,815,128.32 = 561,417.71/x
  3. Step 3: Cross multiply
    1,210,537.53x = 1,815,128.32 × 561,417.71
  4. Step 4: Simplify right side
    1,210,537.53x = 1,019,045,184,770.55
  5. Step 5: Solve for x
    x = 1,019,045,184,770.55/1,210,537.53
  6. Step 6: Final answer
    x = 841,812.14

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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.