Home / 761,230.88-1,050,498.62-455,320.16

Finding the Fourth Proportional to 761,230.88, 1,050,498.62 and 455,320.16

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Solution

The fourth proportional to 761,230.88, 1,050,498.62 and 455,320.16 is: 628,341.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,230.88 : 1,050,498.62 = 455,320.16 : x
  2. Step 2: Convert to fraction form
    761,230.88/1,050,498.62 = 455,320.16/x
  3. Step 3: Cross multiply
    761,230.88x = 1,050,498.62 × 455,320.16
  4. Step 4: Simplify right side
    761,230.88x = 478,313,192,209.09
  5. Step 5: Solve for x
    x = 478,313,192,209.09/761,230.88
  6. Step 6: Final answer
    x = 628,341.82

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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.