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Finding the Fourth Proportional to 1,038,500, 1,433,130.08 and 561,572

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Solution

The fourth proportional to 1,038,500, 1,433,130.08 and 561,572 is: 774,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,500 : 1,433,130.08 = 561,572 : x
  2. Step 2: Convert to fraction form
    1,038,500/1,433,130.08 = 561,572/x
  3. Step 3: Cross multiply
    1,038,500x = 1,433,130.08 × 561,572
  4. Step 4: Simplify right side
    1,038,500x = 804,805,725,285.76
  5. Step 5: Solve for x
    x = 804,805,725,285.76/1,038,500
  6. Step 6: Final answer
    x = 774,969.40

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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.