Home / 740,030.68-1,021,242.36-400,498.93

Finding the Fourth Proportional to 740,030.68, 1,021,242.36 and 400,498.93

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Solution

The fourth proportional to 740,030.68, 1,021,242.36 and 400,498.93 is: 552,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,030.68 : 1,021,242.36 = 400,498.93 : x
  2. Step 2: Convert to fraction form
    740,030.68/1,021,242.36 = 400,498.93/x
  3. Step 3: Cross multiply
    740,030.68x = 1,021,242.36 × 400,498.93
  4. Step 4: Simplify right side
    740,030.68x = 409,006,472,450.68
  5. Step 5: Solve for x
    x = 409,006,472,450.68/740,030.68
  6. Step 6: Final answer
    x = 552,688.54

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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.