Home / 630,280.04-869,751.46-358,310.18

Finding the Fourth Proportional to 630,280.04, 869,751.46 and 358,310.18

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Solution

The fourth proportional to 630,280.04, 869,751.46 and 358,310.18 is: 494,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,280.04 : 869,751.46 = 358,310.18 : x
  2. Step 2: Convert to fraction form
    630,280.04/869,751.46 = 358,310.18/x
  3. Step 3: Cross multiply
    630,280.04x = 869,751.46 × 358,310.18
  4. Step 4: Simplify right side
    630,280.04x = 311,640,802,187.86
  5. Step 5: Solve for x
    x = 311,640,802,187.86/630,280.04
  6. Step 6: Final answer
    x = 494,448.15

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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.