Home / 684,005.72-1,020,999.68-603,204.89

Finding the Fourth Proportional to 684,005.72, 1,020,999.68 and 603,204.89

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Solution

The fourth proportional to 684,005.72, 1,020,999.68 and 603,204.89 is: 900,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,005.72 : 1,020,999.68 = 603,204.89 : x
  2. Step 2: Convert to fraction form
    684,005.72/1,020,999.68 = 603,204.89/x
  3. Step 3: Cross multiply
    684,005.72x = 1,020,999.68 × 603,204.89
  4. Step 4: Simplify right side
    684,005.72x = 615,871,991,543.41
  5. Step 5: Solve for x
    x = 615,871,991,543.41/684,005.72
  6. Step 6: Final answer
    x = 900,390.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.