Finding the Fourth Proportional to 430,312.58, 644,878.37 and 272,258.09
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Solution
The fourth proportional to 430,312.58, 644,878.37 and 272,258.09 is: 408,013.53
Step by Step Solution
- Step 1: Write the proportion equation
430,312.58 : 644,878.37 = 272,258.09 : x - Step 2: Convert to fraction form
430,312.58/644,878.37 = 272,258.09/x - Step 3: Cross multiply
430,312.58x = 644,878.37 × 272,258.09 - Step 4: Simplify right side
430,312.58x = 175,573,353,298.51 - Step 5: Solve for x
x = 175,573,353,298.51/430,312.58 - Step 6: Final answer
x = 408,013.53
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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.