Home / 870,045.96-1,200,394.38-507,212.94

Finding the Fourth Proportional to 870,045.96, 1,200,394.38 and 507,212.94

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Solution

The fourth proportional to 870,045.96, 1,200,394.38 and 507,212.94 is: 699,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,045.96 : 1,200,394.38 = 507,212.94 : x
  2. Step 2: Convert to fraction form
    870,045.96/1,200,394.38 = 507,212.94/x
  3. Step 3: Cross multiply
    870,045.96x = 1,200,394.38 × 507,212.94
  4. Step 4: Simplify right side
    870,045.96x = 608,855,562,639.28
  5. Step 5: Solve for x
    x = 608,855,562,639.28/870,045.96
  6. Step 6: Final answer
    x = 699,797.01

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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.