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Finding the Fourth Proportional to 557,182.80, 768,890.70 and 302,528.16

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Solution

The fourth proportional to 557,182.80, 768,890.70 and 302,528.16 is: 417,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,182.80 : 768,890.70 = 302,528.16 : x
  2. Step 2: Convert to fraction form
    557,182.80/768,890.70 = 302,528.16/x
  3. Step 3: Cross multiply
    557,182.80x = 768,890.70 × 302,528.16
  4. Step 4: Simplify right side
    557,182.80x = 232,611,088,712.11
  5. Step 5: Solve for x
    x = 232,611,088,712.11/557,182.80
  6. Step 6: Final answer
    x = 417,477.15

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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.