Finding the Fourth Proportional to 1,185,898.61, 1,779,177.78 and 387,228.08
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Solution
The fourth proportional to 1,185,898.61, 1,779,177.78 and 387,228.08 is: 580,949.82
Step by Step Solution
- Step 1: Write the proportion equation
1,185,898.61 : 1,779,177.78 = 387,228.08 : x - Step 2: Convert to fraction form
1,185,898.61/1,779,177.78 = 387,228.08/x - Step 3: Cross multiply
1,185,898.61x = 1,779,177.78 × 387,228.08 - Step 4: Simplify right side
1,185,898.61x = 688,947,586,832.17 - Step 5: Solve for x
x = 688,947,586,832.17/1,185,898.61 - Step 6: Final answer
x = 580,949.82
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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.