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Finding the Fourth Proportional to 637,283.64, 879,476.52 and 350,830.40

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Solution

The fourth proportional to 637,283.64, 879,476.52 and 350,830.40 is: 484,159.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,283.64 : 879,476.52 = 350,830.40 : x
  2. Step 2: Convert to fraction form
    637,283.64/879,476.52 = 350,830.40/x
  3. Step 3: Cross multiply
    637,283.64x = 879,476.52 × 350,830.40
  4. Step 4: Simplify right side
    637,283.64x = 308,547,099,302.21
  5. Step 5: Solve for x
    x = 308,547,099,302.21/637,283.64
  6. Step 6: Final answer
    x = 484,159.77

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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.