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Finding the Fourth Proportional to 657,289.89, 907,060.05 and 355,483.89

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Solution

The fourth proportional to 657,289.89, 907,060.05 and 355,483.89 is: 490,567.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,289.89 : 907,060.05 = 355,483.89 : x
  2. Step 2: Convert to fraction form
    657,289.89/907,060.05 = 355,483.89/x
  3. Step 3: Cross multiply
    657,289.89x = 907,060.05 × 355,483.89
  4. Step 4: Simplify right side
    657,289.89x = 322,445,235,037.60
  5. Step 5: Solve for x
    x = 322,445,235,037.60/657,289.89
  6. Step 6: Final answer
    x = 490,567.77

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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.