Home / 947,075.78-1,306,878.78-533,679.86

Finding the Fourth Proportional to 947,075.78, 1,306,878.78 and 533,679.86

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Solution

The fourth proportional to 947,075.78, 1,306,878.78 and 533,679.86 is: 736,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,075.78 : 1,306,878.78 = 533,679.86 : x
  2. Step 2: Convert to fraction form
    947,075.78/1,306,878.78 = 533,679.86/x
  3. Step 3: Cross multiply
    947,075.78x = 1,306,878.78 × 533,679.86
  4. Step 4: Simplify right side
    947,075.78x = 697,454,884,347.37
  5. Step 5: Solve for x
    x = 697,454,884,347.37/947,075.78
  6. Step 6: Final answer
    x = 736,429.86

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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.