Home / 740,075.47-1,021,304.13-400,543.72

Finding the Fourth Proportional to 740,075.47, 1,021,304.13 and 400,543.72

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Solution

The fourth proportional to 740,075.47, 1,021,304.13 and 400,543.72 is: 552,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,075.47 : 1,021,304.13 = 400,543.72 : x
  2. Step 2: Convert to fraction form
    740,075.47/1,021,304.13 = 400,543.72/x
  3. Step 3: Cross multiply
    740,075.47x = 1,021,304.13 × 400,543.72
  4. Step 4: Simplify right side
    740,075.47x = 409,076,951,426.26
  5. Step 5: Solve for x
    x = 409,076,951,426.26/740,075.47
  6. Step 6: Final answer
    x = 552,750.32

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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.