Home / 942,285.84-1,300,340.76-512,569.44

Finding the Fourth Proportional to 942,285.84, 1,300,340.76 and 512,569.44

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Solution

The fourth proportional to 942,285.84, 1,300,340.76 and 512,569.44 is: 707,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,285.84 : 1,300,340.76 = 512,569.44 : x
  2. Step 2: Convert to fraction form
    942,285.84/1,300,340.76 = 512,569.44/x
  3. Step 3: Cross multiply
    942,285.84x = 1,300,340.76 × 512,569.44
  4. Step 4: Simplify right side
    942,285.84x = 666,514,935,162.37
  5. Step 5: Solve for x
    x = 666,514,935,162.37/942,285.84
  6. Step 6: Final answer
    x = 707,338.38

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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.