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Finding the Fourth Proportional to 910,807, 1,256,933.64 and 502,907.74

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Solution

The fourth proportional to 910,807, 1,256,933.64 and 502,907.74 is: 694,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,807 : 1,256,933.64 = 502,907.74 : x
  2. Step 2: Convert to fraction form
    910,807/1,256,933.64 = 502,907.74/x
  3. Step 3: Cross multiply
    910,807x = 1,256,933.64 × 502,907.74
  4. Step 4: Simplify right side
    910,807x = 632,121,656,222.37
  5. Step 5: Solve for x
    x = 632,121,656,222.37/910,807
  6. Step 6: Final answer
    x = 694,023.71

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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.