Home / 478,541.78-660,417.15-263,681.81

Finding the Fourth Proportional to 478,541.78, 660,417.15 and 263,681.81

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Solution

The fourth proportional to 478,541.78, 660,417.15 and 263,681.81 is: 363,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,541.78 : 660,417.15 = 263,681.81 : x
  2. Step 2: Convert to fraction form
    478,541.78/660,417.15 = 263,681.81/x
  3. Step 3: Cross multiply
    478,541.78x = 660,417.15 × 263,681.81
  4. Step 4: Simplify right side
    478,541.78x = 174,139,989,467.04
  5. Step 5: Solve for x
    x = 174,139,989,467.04/478,541.78
  6. Step 6: Final answer
    x = 363,897.15

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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.