Home / 761,577.77-1,051,455.15-490,117.40

Finding the Fourth Proportional to 761,577.77, 1,051,455.15 and 490,117.40

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Solution

The fourth proportional to 761,577.77, 1,051,455.15 and 490,117.40 is: 676,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,577.77 : 1,051,455.15 = 490,117.40 : x
  2. Step 2: Convert to fraction form
    761,577.77/1,051,455.15 = 490,117.40/x
  3. Step 3: Cross multiply
    761,577.77x = 1,051,455.15 × 490,117.40
  4. Step 4: Simplify right side
    761,577.77x = 515,336,459,077.33
  5. Step 5: Solve for x
    x = 515,336,459,077.33/761,577.77
  6. Step 6: Final answer
    x = 676,669.52

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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.