Finding the Fourth Proportional to 570,421.84, 787,188.36 and 315,777.28
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Solution
The fourth proportional to 570,421.84, 787,188.36 and 315,777.28 is: 435,776.09
Step by Step Solution
- Step 1: Write the proportion equation
570,421.84 : 787,188.36 = 315,777.28 : x - Step 2: Convert to fraction form
570,421.84/787,188.36 = 315,777.28/x - Step 3: Cross multiply
570,421.84x = 787,188.36 × 315,777.28 - Step 4: Simplify right side
570,421.84x = 248,576,199,168.46 - Step 5: Solve for x
x = 248,576,199,168.46/570,421.84 - Step 6: Final answer
x = 435,776.09
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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.