Home / 864,874.12-1,296,875.64-288,293.26

Finding the Fourth Proportional to 864,874.12, 1,296,875.64 and 288,293.26

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Solution

The fourth proportional to 864,874.12, 1,296,875.64 and 288,293.26 is: 432,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,874.12 : 1,296,875.64 = 288,293.26 : x
  2. Step 2: Convert to fraction form
    864,874.12/1,296,875.64 = 288,293.26/x
  3. Step 3: Cross multiply
    864,874.12x = 1,296,875.64 × 288,293.26
  4. Step 4: Simplify right side
    864,874.12x = 373,880,506,070.19
  5. Step 5: Solve for x
    x = 373,880,506,070.19/864,874.12
  6. Step 6: Final answer
    x = 432,294.71

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1.5x scale

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.