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Finding the Fourth Proportional to 637,312, 879,549.12 and 350,890.24

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Solution

The fourth proportional to 637,312, 879,549.12 and 350,890.24 is: 484,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,312 : 879,549.12 = 350,890.24 : x
  2. Step 2: Convert to fraction form
    637,312/879,549.12 = 350,890.24/x
  3. Step 3: Cross multiply
    637,312x = 879,549.12 × 350,890.24
  4. Step 4: Simplify right side
    637,312x = 308,625,201,808.59
  5. Step 5: Solve for x
    x = 308,625,201,808.59/637,312
  6. Step 6: Final answer
    x = 484,260.77

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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.