Home / 1,438,914.74-1,985,706.64-785,541.78

Finding the Fourth Proportional to 1,438,914.74, 1,985,706.64 and 785,541.78

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Solution

The fourth proportional to 1,438,914.74, 1,985,706.64 and 785,541.78 is: 1,084,050.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,914.74 : 1,985,706.64 = 785,541.78 : x
  2. Step 2: Convert to fraction form
    1,438,914.74/1,985,706.64 = 785,541.78/x
  3. Step 3: Cross multiply
    1,438,914.74x = 1,985,706.64 × 785,541.78
  4. Step 4: Simplify right side
    1,438,914.74x = 1,559,855,528,543.42
  5. Step 5: Solve for x
    x = 1,559,855,528,543.42/1,438,914.74
  6. Step 6: Final answer
    x = 1,084,050.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.