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Finding the Fourth Proportional to 895,254.12, 1,235,412.84 and 487,347.47

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Solution

The fourth proportional to 895,254.12, 1,235,412.84 and 487,347.47 is: 672,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,254.12 : 1,235,412.84 = 487,347.47 : x
  2. Step 2: Convert to fraction form
    895,254.12/1,235,412.84 = 487,347.47/x
  3. Step 3: Cross multiply
    895,254.12x = 1,235,412.84 × 487,347.47
  4. Step 4: Simplify right side
    895,254.12x = 602,075,322,262.80
  5. Step 5: Solve for x
    x = 602,075,322,262.80/895,254.12
  6. Step 6: Final answer
    x = 672,518.91

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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.