Home / 760,390.40-1,049,387.46-438,094.64

Finding the Fourth Proportional to 760,390.40, 1,049,387.46 and 438,094.64

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Solution

The fourth proportional to 760,390.40, 1,049,387.46 and 438,094.64 is: 604,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,390.40 : 1,049,387.46 = 438,094.64 : x
  2. Step 2: Convert to fraction form
    760,390.40/1,049,387.46 = 438,094.64/x
  3. Step 3: Cross multiply
    760,390.40x = 1,049,387.46 × 438,094.64
  4. Step 4: Simplify right side
    760,390.40x = 459,731,021,509.21
  5. Step 5: Solve for x
    x = 459,731,021,509.21/760,390.40
  6. Step 6: Final answer
    x = 604,598.67

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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.