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Finding the Fourth Proportional to 553,401.64, 763,805.46 and 362,345.32

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Solution

The fourth proportional to 553,401.64, 763,805.46 and 362,345.32 is: 500,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,401.64 : 763,805.46 = 362,345.32 : x
  2. Step 2: Convert to fraction form
    553,401.64/763,805.46 = 362,345.32/x
  3. Step 3: Cross multiply
    553,401.64x = 763,805.46 × 362,345.32
  4. Step 4: Simplify right side
    553,401.64x = 276,761,333,821.45
  5. Step 5: Solve for x
    x = 276,761,333,821.45/553,401.64
  6. Step 6: Final answer
    x = 500,109.35

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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.