Home / 761,465.30-1,050,748.89-455,479.70

Finding the Fourth Proportional to 761,465.30, 1,050,748.89 and 455,479.70

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Solution

The fourth proportional to 761,465.30, 1,050,748.89 and 455,479.70 is: 628,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,465.30 : 1,050,748.89 = 455,479.70 : x
  2. Step 2: Convert to fraction form
    761,465.30/1,050,748.89 = 455,479.70/x
  3. Step 3: Cross multiply
    761,465.30x = 1,050,748.89 × 455,479.70
  4. Step 4: Simplify right side
    761,465.30x = 478,594,789,192.53
  5. Step 5: Solve for x
    x = 478,594,789,192.53/761,465.30
  6. Step 6: Final answer
    x = 628,518.19

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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.