Home / 529,148.13-730,237.59-287,430.63

Finding the Fourth Proportional to 529,148.13, 730,237.59 and 287,430.63

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Solution

The fourth proportional to 529,148.13, 730,237.59 and 287,430.63 is: 396,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,148.13 : 730,237.59 = 287,430.63 : x
  2. Step 2: Convert to fraction form
    529,148.13/730,237.59 = 287,430.63/x
  3. Step 3: Cross multiply
    529,148.13x = 730,237.59 × 287,430.63
  4. Step 4: Simplify right side
    529,148.13x = 209,892,650,543.38
  5. Step 5: Solve for x
    x = 209,892,650,543.38/529,148.13
  6. Step 6: Final answer
    x = 396,661.42

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1.5x scale

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.