Home / 989,393.22-1,484,196.75-315,316.08

Finding the Fourth Proportional to 989,393.22, 1,484,196.75 and 315,316.08

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Solution

The fourth proportional to 989,393.22, 1,484,196.75 and 315,316.08 is: 473,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,393.22 : 1,484,196.75 = 315,316.08 : x
  2. Step 2: Convert to fraction form
    989,393.22/1,484,196.75 = 315,316.08/x
  3. Step 3: Cross multiply
    989,393.22x = 1,484,196.75 × 315,316.08
  4. Step 4: Simplify right side
    989,393.22x = 467,991,101,158.74
  5. Step 5: Solve for x
    x = 467,991,101,158.74/989,393.22
  6. Step 6: Final answer
    x = 473,008.20

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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.