Home / 816,564.15-1,225,095.21-417,485.16

Finding the Fourth Proportional to 816,564.15, 1,225,095.21 and 417,485.16

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Solution

The fourth proportional to 816,564.15, 1,225,095.21 and 417,485.16 is: 626,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,564.15 : 1,225,095.21 = 417,485.16 : x
  2. Step 2: Convert to fraction form
    816,564.15/1,225,095.21 = 417,485.16/x
  3. Step 3: Cross multiply
    816,564.15x = 1,225,095.21 × 417,485.16
  4. Step 4: Simplify right side
    816,564.15x = 511,459,069,762.08
  5. Step 5: Solve for x
    x = 511,459,069,762.08/816,564.15
  6. Step 6: Final answer
    x = 626,355.04

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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.