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Finding the Fourth Proportional to 575,042.72, 792,784.68 and 402,728.72

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Solution

The fourth proportional to 575,042.72, 792,784.68 and 402,728.72 is: 555,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,042.72 : 792,784.68 = 402,728.72 : x
  2. Step 2: Convert to fraction form
    575,042.72/792,784.68 = 402,728.72/x
  3. Step 3: Cross multiply
    575,042.72x = 792,784.68 × 402,728.72
  4. Step 4: Simplify right side
    575,042.72x = 319,277,159,412.01
  5. Step 5: Solve for x
    x = 319,277,159,412.01/575,042.72
  6. Step 6: Final answer
    x = 555,223.37

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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.