Home / 397,430.28-549,897.89-346,549.12

Finding the Fourth Proportional to 397,430.28, 549,897.89 and 346,549.12

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Solution

The fourth proportional to 397,430.28, 549,897.89 and 346,549.12 is: 479,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,430.28 : 549,897.89 = 346,549.12 : x
  2. Step 2: Convert to fraction form
    397,430.28/549,897.89 = 346,549.12/x
  3. Step 3: Cross multiply
    397,430.28x = 549,897.89 × 346,549.12
  4. Step 4: Simplify right side
    397,430.28x = 190,566,626,761.87
  5. Step 5: Solve for x
    x = 190,566,626,761.87/397,430.28
  6. Step 6: Final answer
    x = 479,497.00

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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.