Home / 874,868.40-1,312,302.60-519,699.60

Finding the Fourth Proportional to 874,868.40, 1,312,302.60 and 519,699.60

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Solution

The fourth proportional to 874,868.40, 1,312,302.60 and 519,699.60 is: 779,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,868.40 : 1,312,302.60 = 519,699.60 : x
  2. Step 2: Convert to fraction form
    874,868.40/1,312,302.60 = 519,699.60/x
  3. Step 3: Cross multiply
    874,868.40x = 1,312,302.60 × 519,699.60
  4. Step 4: Simplify right side
    874,868.40x = 682,003,136,298.96
  5. Step 5: Solve for x
    x = 682,003,136,298.96/874,868.40
  6. Step 6: Final answer
    x = 779,549.40

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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.