Home / 913,907.39-1,261,231.59-506,009.21

Finding the Fourth Proportional to 913,907.39, 1,261,231.59 and 506,009.21

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Solution

The fourth proportional to 913,907.39, 1,261,231.59 and 506,009.21 is: 698,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,907.39 : 1,261,231.59 = 506,009.21 : x
  2. Step 2: Convert to fraction form
    913,907.39/1,261,231.59 = 506,009.21/x
  3. Step 3: Cross multiply
    913,907.39x = 1,261,231.59 × 506,009.21
  4. Step 4: Simplify right side
    913,907.39x = 638,194,794,176.79
  5. Step 5: Solve for x
    x = 638,194,794,176.79/913,907.39
  6. Step 6: Final answer
    x = 698,314.52

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Double scale
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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.