Home / 775,281.60-1,070,312.16-469,410.24

Finding the Fourth Proportional to 775,281.60, 1,070,312.16 and 469,410.24

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Solution

The fourth proportional to 775,281.60, 1,070,312.16 and 469,410.24 is: 648,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,281.60 : 1,070,312.16 = 469,410.24 : x
  2. Step 2: Convert to fraction form
    775,281.60/1,070,312.16 = 469,410.24/x
  3. Step 3: Cross multiply
    775,281.60x = 1,070,312.16 × 469,410.24
  4. Step 4: Simplify right side
    775,281.60x = 502,415,487,900.52
  5. Step 5: Solve for x
    x = 502,415,487,900.52/775,281.60
  6. Step 6: Final answer
    x = 648,042.58

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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.