Home / 830,002.28-1,145,387.60-507,688.68

Finding the Fourth Proportional to 830,002.28, 1,145,387.60 and 507,688.68

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Solution

The fourth proportional to 830,002.28, 1,145,387.60 and 507,688.68 is: 700,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,002.28 : 1,145,387.60 = 507,688.68 : x
  2. Step 2: Convert to fraction form
    830,002.28/1,145,387.60 = 507,688.68/x
  3. Step 3: Cross multiply
    830,002.28x = 1,145,387.60 × 507,688.68
  4. Step 4: Simplify right side
    830,002.28x = 581,500,318,732.37
  5. Step 5: Solve for x
    x = 581,500,318,732.37/830,002.28
  6. Step 6: Final answer
    x = 700,600.87

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1.5x scale

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.