Finding the Fourth Proportional to 1,125,475.39, 1,553,303.94 and 641,929.69
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Solution
The fourth proportional to 1,125,475.39, 1,553,303.94 and 641,929.69 is: 885,947.33
Step by Step Solution
- Step 1: Write the proportion equation
1,125,475.39 : 1,553,303.94 = 641,929.69 : x - Step 2: Convert to fraction form
1,125,475.39/1,553,303.94 = 641,929.69/x - Step 3: Cross multiply
1,125,475.39x = 1,553,303.94 × 641,929.69 - Step 4: Simplify right side
1,125,475.39x = 997,111,908,913.46 - Step 5: Solve for x
x = 997,111,908,913.46/1,125,475.39 - Step 6: Final answer
x = 885,947.33
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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.