Home / 985,808.40-1,478,712.60-631,514.40

Finding the Fourth Proportional to 985,808.40, 1,478,712.60 and 631,514.40

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Solution

The fourth proportional to 985,808.40, 1,478,712.60 and 631,514.40 is: 947,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,808.40 : 1,478,712.60 = 631,514.40 : x
  2. Step 2: Convert to fraction form
    985,808.40/1,478,712.60 = 631,514.40/x
  3. Step 3: Cross multiply
    985,808.40x = 1,478,712.60 × 631,514.40
  4. Step 4: Simplify right side
    985,808.40x = 933,828,300,361.44
  5. Step 5: Solve for x
    x = 933,828,300,361.44/985,808.40
  6. Step 6: Final answer
    x = 947,271.60

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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.