Finding the Fourth Proportional to 1,031,415.98, 1,423,378.60 and 578,740.46
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Solution
The fourth proportional to 1,031,415.98, 1,423,378.60 and 578,740.46 is: 798,675.61
Step by Step Solution
- Step 1: Write the proportion equation
1,031,415.98 : 1,423,378.60 = 578,740.46 : x - Step 2: Convert to fraction form
1,031,415.98/1,423,378.60 = 578,740.46/x - Step 3: Cross multiply
1,031,415.98x = 1,423,378.60 × 578,740.46 - Step 4: Simplify right side
1,031,415.98x = 823,766,785,718.16 - Step 5: Solve for x
x = 823,766,785,718.16/1,031,415.98 - Step 6: Final answer
x = 798,675.61
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1.5x scale
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.