Home / 774,689.37-1,069,603.48-484,426.61

Finding the Fourth Proportional to 774,689.37, 1,069,603.48 and 484,426.61

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Solution

The fourth proportional to 774,689.37, 1,069,603.48 and 484,426.61 is: 668,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,689.37 : 1,069,603.48 = 484,426.61 : x
  2. Step 2: Convert to fraction form
    774,689.37/1,069,603.48 = 484,426.61/x
  3. Step 3: Cross multiply
    774,689.37x = 1,069,603.48 × 484,426.61
  4. Step 4: Simplify right side
    774,689.37x = 518,144,387,129.13
  5. Step 5: Solve for x
    x = 518,144,387,129.13/774,689.37
  6. Step 6: Final answer
    x = 668,841.49

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Double scale
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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.