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Finding the Fourth Proportional to 891,547.72, 1,337,274.58 and 292,430

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Solution

The fourth proportional to 891,547.72, 1,337,274.58 and 292,430 is: 438,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,547.72 : 1,337,274.58 = 292,430 : x
  2. Step 2: Convert to fraction form
    891,547.72/1,337,274.58 = 292,430/x
  3. Step 3: Cross multiply
    891,547.72x = 1,337,274.58 × 292,430
  4. Step 4: Simplify right side
    891,547.72x = 391,059,205,429.40
  5. Step 5: Solve for x
    x = 391,059,205,429.40/891,547.72
  6. Step 6: Final answer
    x = 438,629.58

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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.