Home / 760,913.37-1,047,670.44-645,953.72

Finding the Fourth Proportional to 760,913.37, 1,047,670.44 and 645,953.72

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Solution

The fourth proportional to 760,913.37, 1,047,670.44 and 645,953.72 is: 889,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,913.37 : 1,047,670.44 = 645,953.72 : x
  2. Step 2: Convert to fraction form
    760,913.37/1,047,670.44 = 645,953.72/x
  3. Step 3: Cross multiply
    760,913.37x = 1,047,670.44 × 645,953.72
  4. Step 4: Simplify right side
    760,913.37x = 676,746,612,813.69
  5. Step 5: Solve for x
    x = 676,746,612,813.69/760,913.37
  6. Step 6: Final answer
    x = 889,387.20

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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.