Home / 900,559.02-1,242,649.71-513,424.38

Finding the Fourth Proportional to 900,559.02, 1,242,649.71 and 513,424.38

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Solution

The fourth proportional to 900,559.02, 1,242,649.71 and 513,424.38 is: 708,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,559.02 : 1,242,649.71 = 513,424.38 : x
  2. Step 2: Convert to fraction form
    900,559.02/1,242,649.71 = 513,424.38/x
  3. Step 3: Cross multiply
    900,559.02x = 1,242,649.71 × 513,424.38
  4. Step 4: Simplify right side
    900,559.02x = 638,006,656,913.93
  5. Step 5: Solve for x
    x = 638,006,656,913.93/900,559.02
  6. Step 6: Final answer
    x = 708,456.24

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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.