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Finding the Fourth Proportional to 507,302.49, 700,075.91 and 286,515.60

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Solution

The fourth proportional to 507,302.49, 700,075.91 and 286,515.60 is: 395,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,302.49 : 700,075.91 = 286,515.60 : x
  2. Step 2: Convert to fraction form
    507,302.49/700,075.91 = 286,515.60/x
  3. Step 3: Cross multiply
    507,302.49x = 700,075.91 × 286,515.60
  4. Step 4: Simplify right side
    507,302.49x = 200,582,667,490.20
  5. Step 5: Solve for x
    x = 200,582,667,490.20/507,302.49
  6. Step 6: Final answer
    x = 395,390.66

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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.