Home / 761,319.73-1,050,544.24-455,335.35

Finding the Fourth Proportional to 761,319.73, 1,050,544.24 and 455,335.35

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Solution

The fourth proportional to 761,319.73, 1,050,544.24 and 455,335.35 is: 628,316.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,319.73 : 1,050,544.24 = 455,335.35 : x
  2. Step 2: Convert to fraction form
    761,319.73/1,050,544.24 = 455,335.35/x
  3. Step 3: Cross multiply
    761,319.73x = 1,050,544.24 × 455,335.35
  4. Step 4: Simplify right side
    761,319.73x = 478,349,929,210.88
  5. Step 5: Solve for x
    x = 478,349,929,210.88/761,319.73
  6. Step 6: Final answer
    x = 628,316.74

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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.