Home / 986,802.51-1,480,202.82-371,421.38

Finding the Fourth Proportional to 986,802.51, 1,480,202.82 and 371,421.38

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Solution

The fourth proportional to 986,802.51, 1,480,202.82 and 371,421.38 is: 557,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,802.51 : 1,480,202.82 = 371,421.38 : x
  2. Step 2: Convert to fraction form
    986,802.51/1,480,202.82 = 371,421.38/x
  3. Step 3: Cross multiply
    986,802.51x = 1,480,202.82 × 371,421.38
  4. Step 4: Simplify right side
    986,802.51x = 549,778,966,683.28
  5. Step 5: Solve for x
    x = 549,778,966,683.28/986,802.51
  6. Step 6: Final answer
    x = 557,131.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.