Home / 759,438.57-1,047,531.45-487,075.06

Finding the Fourth Proportional to 759,438.57, 1,047,531.45 and 487,075.06

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Solution

The fourth proportional to 759,438.57, 1,047,531.45 and 487,075.06 is: 671,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,438.57 : 1,047,531.45 = 487,075.06 : x
  2. Step 2: Convert to fraction form
    759,438.57/1,047,531.45 = 487,075.06/x
  3. Step 3: Cross multiply
    759,438.57x = 1,047,531.45 × 487,075.06
  4. Step 4: Simplify right side
    759,438.57x = 510,226,443,860.64
  5. Step 5: Solve for x
    x = 510,226,443,860.64/759,438.57
  6. Step 6: Final answer
    x = 671,846.89

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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.