Home / 1,129,970.40-1,693,643.40-455,718.30

Finding the Fourth Proportional to 1,129,970.40, 1,693,643.40 and 455,718.30

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Solution

The fourth proportional to 1,129,970.40, 1,693,643.40 and 455,718.30 is: 683,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,970.40 : 1,693,643.40 = 455,718.30 : x
  2. Step 2: Convert to fraction form
    1,129,970.40/1,693,643.40 = 455,718.30/x
  3. Step 3: Cross multiply
    1,129,970.40x = 1,693,643.40 × 455,718.30
  4. Step 4: Simplify right side
    1,129,970.40x = 771,824,291,054.22
  5. Step 5: Solve for x
    x = 771,824,291,054.22/1,129,970.40
  6. Step 6: Final answer
    x = 683,048.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.