Home / 760,060.90-1,138,862.55-479,075.30

Finding the Fourth Proportional to 760,060.90, 1,138,862.55 and 479,075.30

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Solution

The fourth proportional to 760,060.90, 1,138,862.55 and 479,075.30 is: 717,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,060.90 : 1,138,862.55 = 479,075.30 : x
  2. Step 2: Convert to fraction form
    760,060.90/1,138,862.55 = 479,075.30/x
  3. Step 3: Cross multiply
    760,060.90x = 1,138,862.55 × 479,075.30
  4. Step 4: Simplify right side
    760,060.90x = 545,600,917,800.02
  5. Step 5: Solve for x
    x = 545,600,917,800.02/760,060.90
  6. Step 6: Final answer
    x = 717,838.42

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1.5x scale

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.