Home / 918,587.95-1,267,656.29-505,151.39

Finding the Fourth Proportional to 918,587.95, 1,267,656.29 and 505,151.39

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Solution

The fourth proportional to 918,587.95, 1,267,656.29 and 505,151.39 is: 697,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,587.95 : 1,267,656.29 = 505,151.39 : x
  2. Step 2: Convert to fraction form
    918,587.95/1,267,656.29 = 505,151.39/x
  3. Step 3: Cross multiply
    918,587.95x = 1,267,656.29 × 505,151.39
  4. Step 4: Simplify right side
    918,587.95x = 640,358,336,935.74
  5. Step 5: Solve for x
    x = 640,358,336,935.74/918,587.95
  6. Step 6: Final answer
    x = 697,111.62

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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.