Finding the Fourth Proportional to 917,865.80, 1,376,798.70 and 707,913.80
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Solution
The fourth proportional to 917,865.80, 1,376,798.70 and 707,913.80 is: 1,061,870.70
Step by Step Solution
- Step 1: Write the proportion equation
917,865.80 : 1,376,798.70 = 707,913.80 : x - Step 2: Convert to fraction form
917,865.80/1,376,798.70 = 707,913.80/x - Step 3: Cross multiply
917,865.80x = 1,376,798.70 × 707,913.80 - Step 4: Simplify right side
917,865.80x = 974,654,799,552.06 - Step 5: Solve for x
x = 974,654,799,552.06/917,865.80 - Step 6: Final answer
x = 1,061,870.70
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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.