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Finding the Fourth Proportional to 607,890.80, 910,852.05 and 572,461.40

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Solution

The fourth proportional to 607,890.80, 910,852.05 and 572,461.40 is: 857,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,890.80 : 910,852.05 = 572,461.40 : x
  2. Step 2: Convert to fraction form
    607,890.80/910,852.05 = 572,461.40/x
  3. Step 3: Cross multiply
    607,890.80x = 910,852.05 × 572,461.40
  4. Step 4: Simplify right side
    607,890.80x = 521,427,639,735.87
  5. Step 5: Solve for x
    x = 521,427,639,735.87/607,890.80
  6. Step 6: Final answer
    x = 857,765.31

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1.5x scale

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.