Home / 739,760.04-1,020,875.40-400,235.04

Finding the Fourth Proportional to 739,760.04, 1,020,875.40 and 400,235.04

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Solution

The fourth proportional to 739,760.04, 1,020,875.40 and 400,235.04 is: 552,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,760.04 : 1,020,875.40 = 400,235.04 : x
  2. Step 2: Convert to fraction form
    739,760.04/1,020,875.40 = 400,235.04/x
  3. Step 3: Cross multiply
    739,760.04x = 1,020,875.40 × 400,235.04
  4. Step 4: Simplify right side
    739,760.04x = 408,590,106,554.02
  5. Step 5: Solve for x
    x = 408,590,106,554.02/739,760.04
  6. Step 6: Final answer
    x = 552,327.90

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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.