Home / 739,721.80-1,020,807.47-433,734.98

Finding the Fourth Proportional to 739,721.80, 1,020,807.47 and 433,734.98

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Solution

The fourth proportional to 739,721.80, 1,020,807.47 and 433,734.98 is: 598,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,721.80 : 1,020,807.47 = 433,734.98 : x
  2. Step 2: Convert to fraction form
    739,721.80/1,020,807.47 = 433,734.98/x
  3. Step 3: Cross multiply
    739,721.80x = 1,020,807.47 × 433,734.98
  4. Step 4: Simplify right side
    739,721.80x = 442,759,905,415.63
  5. Step 5: Solve for x
    x = 442,759,905,415.63/739,721.80
  6. Step 6: Final answer
    x = 598,549.22

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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.