Finding the Fourth Proportional to 1,133,972.15, 1,564,807.28 and 624,674.52
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Solution
The fourth proportional to 1,133,972.15, 1,564,807.28 and 624,674.52 is: 862,009.92
Step by Step Solution
- Step 1: Write the proportion equation
1,133,972.15 : 1,564,807.28 = 624,674.52 : x - Step 2: Convert to fraction form
1,133,972.15/1,564,807.28 = 624,674.52/x - Step 3: Cross multiply
1,133,972.15x = 1,564,807.28 × 624,674.52 - Step 4: Simplify right side
1,133,972.15x = 977,495,233,403.13 - Step 5: Solve for x
x = 977,495,233,403.13/1,133,972.15 - Step 6: Final answer
x = 862,009.92
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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.