Home / 739,221.36-1,020,119.54-429,152.72

Finding the Fourth Proportional to 739,221.36, 1,020,119.54 and 429,152.72

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Solution

The fourth proportional to 739,221.36, 1,020,119.54 and 429,152.72 is: 592,227.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,221.36 : 1,020,119.54 = 429,152.72 : x
  2. Step 2: Convert to fraction form
    739,221.36/1,020,119.54 = 429,152.72/x
  3. Step 3: Cross multiply
    739,221.36x = 1,020,119.54 × 429,152.72
  4. Step 4: Simplify right side
    739,221.36x = 437,787,075,316.15
  5. Step 5: Solve for x
    x = 437,787,075,316.15/739,221.36
  6. Step 6: Final answer
    x = 592,227.31

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Double scale
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Similar ratio
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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.