Finding the Fourth Proportional to 630,417.05, 869,940.08 and 358,551.08
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Solution
The fourth proportional to 630,417.05, 869,940.08 and 358,551.08 is: 494,780.32
Step by Step Solution
- Step 1: Write the proportion equation
630,417.05 : 869,940.08 = 358,551.08 : x - Step 2: Convert to fraction form
630,417.05/869,940.08 = 358,551.08/x - Step 3: Cross multiply
630,417.05x = 869,940.08 × 358,551.08 - Step 4: Simplify right side
630,417.05x = 311,917,949,076.83 - Step 5: Solve for x
x = 311,917,949,076.83/630,417.05 - Step 6: Final answer
x = 494,780.32
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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.