Home / 403,669.40-604,985.70-245,730.20

Finding the Fourth Proportional to 403,669.40, 604,985.70 and 245,730.20

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Solution

The fourth proportional to 403,669.40, 604,985.70 and 245,730.20 is: 368,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,669.40 : 604,985.70 = 245,730.20 : x
  2. Step 2: Convert to fraction form
    403,669.40/604,985.70 = 245,730.20/x
  3. Step 3: Cross multiply
    403,669.40x = 604,985.70 × 245,730.20
  4. Step 4: Simplify right side
    403,669.40x = 148,663,257,058.14
  5. Step 5: Solve for x
    x = 148,663,257,058.14/403,669.40
  6. Step 6: Final answer
    x = 368,279.73

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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.