Home / 870,048.95-1,200,811.95-507,472.81

Finding the Fourth Proportional to 870,048.95, 1,200,811.95 and 507,472.81

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Solution

The fourth proportional to 870,048.95, 1,200,811.95 and 507,472.81 is: 700,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,048.95 : 1,200,811.95 = 507,472.81 : x
  2. Step 2: Convert to fraction form
    870,048.95/1,200,811.95 = 507,472.81/x
  3. Step 3: Cross multiply
    870,048.95x = 1,200,811.95 × 507,472.81
  4. Step 4: Simplify right side
    870,048.95x = 609,379,414,548.08
  5. Step 5: Solve for x
    x = 609,379,414,548.08/870,048.95
  6. Step 6: Final answer
    x = 700,396.70

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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.