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Finding the Fourth Proportional to 557,339.32, 769,129.59 and 302,685.04

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Solution

The fourth proportional to 557,339.32, 769,129.59 and 302,685.04 is: 417,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,339.32 : 769,129.59 = 302,685.04 : x
  2. Step 2: Convert to fraction form
    557,339.32/769,129.59 = 302,685.04/x
  3. Step 3: Cross multiply
    557,339.32x = 769,129.59 × 302,685.04
  4. Step 4: Simplify right side
    557,339.32x = 232,804,020,714.33
  5. Step 5: Solve for x
    x = 232,804,020,714.33/557,339.32
  6. Step 6: Final answer
    x = 417,706.08

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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.