Home / 870,075.79-1,200,712.79-488,110.77

Finding the Fourth Proportional to 870,075.79, 1,200,712.79 and 488,110.77

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Solution

The fourth proportional to 870,075.79, 1,200,712.79 and 488,110.77 is: 673,597.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,075.79 : 1,200,712.79 = 488,110.77 : x
  2. Step 2: Convert to fraction form
    870,075.79/1,200,712.79 = 488,110.77/x
  3. Step 3: Cross multiply
    870,075.79x = 1,200,712.79 × 488,110.77
  4. Step 4: Simplify right side
    870,075.79x = 586,080,844,475.75
  5. Step 5: Solve for x
    x = 586,080,844,475.75/870,075.79
  6. Step 6: Final answer
    x = 673,597.46

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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.