Home / 761,577.64-1,051,455.72-490,118.32

Finding the Fourth Proportional to 761,577.64, 1,051,455.72 and 490,118.32

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Solution

The fourth proportional to 761,577.64, 1,051,455.72 and 490,118.32 is: 676,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,577.64 : 1,051,455.72 = 490,118.32 : x
  2. Step 2: Convert to fraction form
    761,577.64/1,051,455.72 = 490,118.32/x
  3. Step 3: Cross multiply
    761,577.64x = 1,051,455.72 × 490,118.32
  4. Step 4: Simplify right side
    761,577.64x = 515,337,711,040.79
  5. Step 5: Solve for x
    x = 515,337,711,040.79/761,577.64
  6. Step 6: Final answer
    x = 676,671.27

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Double scale
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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.