Home / 997,312.56-1,495,999.08-390,076.64

Finding the Fourth Proportional to 997,312.56, 1,495,999.08 and 390,076.64

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Solution

The fourth proportional to 997,312.56, 1,495,999.08 and 390,076.64 is: 585,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,312.56 : 1,495,999.08 = 390,076.64 : x
  2. Step 2: Convert to fraction form
    997,312.56/1,495,999.08 = 390,076.64/x
  3. Step 3: Cross multiply
    997,312.56x = 1,495,999.08 × 390,076.64
  4. Step 4: Simplify right side
    997,312.56x = 583,554,294,569.49
  5. Step 5: Solve for x
    x = 583,554,294,569.49/997,312.56
  6. Step 6: Final answer
    x = 585,126.79

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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.